- Corticium radicale — likely to require a low level of donation
- Corticium radiosum — likely to require a low level of donation
- Corticium ramosissimum — likely to require a low level of donation
- Corticium ravum — likely to require a low level of donation
- Corticium reisneri — likely to require a low level of donation
- Corticium resupinatum — likely to require a low level of donation
- Corticium reticulatum — likely to require a low level of donation
- Corticium ribesium — likely to require a low level of donation
- Corticium rigescens — likely to require a low level of donation
- Corticium rimosissimum — likely to require a low level of donation
- Corticium rivulosum — likely to require a low level of donation
- Corticium roridum — likely to require a low level of donation
- Corticium rosae — likely to require a low level of donation
- Corticium roseocarneum — likely to require a low level of donation
- Corticium roseolum — likely to require a low level of donation
- Corticium roseum — likely to require a low level of donation
- Corticium rubellum — likely to require a low level of donation
- Corticium rubicundum — likely to require a low level of donation
- Corticium rubrocanum — likely to require a low level of donation
- Corticium rubropunctatum — likely to require a low level of donation
- Corticium rufoflavum — likely to require a low level of donation
- Corticium rufofulvum — likely to require a low level of donation
- Corticium rutilans — likely to require a low level of donation
- Corticium saccharinum — likely to require a low level of donation
- Corticium sarcoides — likely to require a low level of donation
- Corticium scariosum — likely to require a low level of donation
- Corticium sebaciniforme — likely to require a low level of donation
- Corticium secedens — likely to require a low level of donation
- Corticium sect. Corticium — likely to require a low level of donation
- Corticium septentrionale — likely to require a low level of donation
- Corticium simile — likely to require a low level of donation
- Corticium siparium — likely to require a low level of donation
- Corticium sociatum — likely to require a low level of donation
- Corticium sparsum — likely to require a low level of donation
- Corticium spretum — likely to require a low level of donation
- Corticium spumeum — likely to require a low level of donation
- Corticium spurium f. spurium — likely to require a low level of donation
- Corticium stabulare — likely to require a low level of donation
- Corticium stevensonii — likely to require a low level of donation
- Corticium straminellum — likely to require a low level of donation
- Corticium straminicola — likely to require a low level of donation
- Corticium stratosum — likely to require a low level of donation
- Corticium strigosum — likely to require a low level of donation
- Corticium strigosum var. strigosum — likely to require a low level of donation
- Corticium subaurantiacum — likely to require a low level of donation
- Corticium subcinereum — likely to require a low level of donation
- Corticium subcontinuum — likely to require a low level of donation
- Corticium subinvisibile — likely to require a low level of donation
- Corticium sublactescens — likely to require a low level of donation
- Corticium subnullum — likely to require a low level of donation
- Corticium subochraceum — likely to require a low level of donation
- Corticium subodoratum — likely to require a low level of donation
- Corticium subpallidulum — likely to require a low level of donation
- Corticium subroseum — likely to require a low level of donation
- Corticium subterraneum — likely to require a low level of donation
- Corticium subtestaceum — likely to require a low level of donation
- Corticium subzonatum — likely to require a low level of donation
- Corticium suffocatum — likely to require a low level of donation
- Corticium suffultum — likely to require a low level of donation
- Corticium sulphurellum — likely to require a low level of donation
- Corticium sulphureomarginatum — likely to require a low level of donation
- Corticium syringae — likely to require a low level of donation
- Corticium tenerrimum — likely to require a low level of donation
- Corticium tenerum — likely to require a low level of donation
- Corticium tenuissimum — likely to require a low level of donation
- Corticium tephrum — likely to require a low level of donation
- Corticium terrestre — likely to require a low level of donation
- Corticium terreum — likely to require a low level of donation
- Corticium theae — likely to require a low level of donation
- Corticium tomentelloides — likely to require a low level of donation
- Corticium tomentosomarginatum — likely to require a low level of donation
- Corticium trabutii — likely to require a low level of donation
- Corticium tremellinum — likely to require a low level of donation
- Corticium tremellinum var. tremellinum — likely to require a low level of donation
- Corticium typhae var. caricicola — likely to require a low level of donation
- Corticium typhae var. typhae — likely to require a low level of donation
- Corticium ulmi — likely to require a low level of donation
- Corticium utriculicum — likely to require a low level of donation
- Corticium uvidum — likely to require a low level of donation
- Corticium vallum — likely to require a low level of donation
- Corticium variegatum — likely to require a low level of donation
- Corticium velutinum — likely to require a low level of donation
- Corticium versiforme — likely to require a low level of donation
- Corticium vescum — likely to require a low level of donation
- Corticium villosum — likely to require a low level of donation
- Corticium vinaceum — likely to require a low level of donation
- Corticium violaceum — likely to require a low level of donation
- Corticium viride — likely to require a low level of donation
- Corticium vitellinum — likely to require a low level of donation
- Corticium weisseanum — likely to require a low level of donation
- Corticium wettsteinii — likely to require a low level of donation
- Corticium xanthellum — likely to require a low level of donation
- Cortinarius aavae — likely to require a low level of donation
- Cortinarius abditus — likely to require a low level of donation
- Cortinarius aberrans — likely to require a low level of donation
- Cortinarius abiegnus — likely to require a low level of donation
- Cortinarius abietinus — likely to require a low level of donation
- Cortinarius abjectus — likely to require a low level of donation
- Cortinarius abnormis — likely to require a low level of donation
- Cortinarius absarokensis — likely to require a low level of donation
- Cortinarius absinthiacus — likely to require a low level of donation
- Cortinarius acerbiformis — likely to require a low level of donation
- Cortinarius acerbus — likely to require a low level of donation
- Cortinarius acetosus — likely to require a low level of donation
- Cortinarius achrous — likely to require a low level of donation
- Cortinarius achyrocephalus — likely to require a low level of donation
- Cortinarius aciculisporus — likely to require a low level of donation
- Cortinarius acidophilus — likely to require a low level of donation
- Cortinarius aciegemmascens — likely to require a low level of donation
- Cortinarius aciesterilis — likely to require a low level of donation
- Cortinarius acigemmascens — likely to require a low level of donation
- Cortinarius aciserratus — likely to require a low level of donation
- Cortinarius acutellus — likely to require a low level of donation
- Cortinarius acutibulbus — likely to require a low level of donation
- Cortinarius acutispissipes — likely to require a low level of donation
- Cortinarius acutoaltus — likely to require a low level of donation
- Cortinarius acutocephalus — likely to require a low level of donation
- Cortinarius acutoides — likely to require a low level of donation
- Cortinarius acutomammosus — likely to require a low level of donation
- Cortinarius acutopholiotoides — likely to require a low level of donation
- Cortinarius acutorum — likely to require a low level of donation
- Cortinarius acutovelatus — likely to require only a small donation
- Cortinarius acutus — likely to require only a small donation
- Cortinarius acutus var. acutus — likely to require a low level of donation
- Cortinarius acystidiosus — likely to require a low level of donation
- Cortinarius adalbertii — likely to require a low level of donation
- Cortinarius adarmeniacus — likely to require a low level of donation
- Cortinarius addamascenus — likely to require a low level of donation
- Cortinarius adfocalis — likely to require a low level of donation
- Cortinarius admotus — likely to require a low level of donation
- Cortinarius adobtusus — likely to require a low level of donation
- Cortinarius adonis — likely to require a low level of donation
- Cortinarius adustorimosus — likely to require a low level of donation
- Cortinarius adustus — likely to require a low level of donation
- Cortinarius aegrotus — likely to require a low level of donation
- Cortinarius aequalipes — likely to require a low level of donation
- Cortinarius aequatus — likely to require a low level of donation
- Cortinarius aereus — likely to require a low level of donation
- Cortinarius aerugineoconicus — likely to require a low level of donation
- Cortinarius affinis — likely to require a low level of donation
- Cortinarius affinis var. affinis — likely to require a low level of donation
- Cortinarius affinis var. rugosus — likely to require a low level of donation
- Cortinarius aganochrous — likely to require a low level of donation
- Cortinarius agathosmus — likely to require a low level of donation
- Cortinarius aggregatus — likely to require a low level of donation
- Cortinarius agnetis — likely to require a low level of donation
- Cortinarius ahsii — likely to require a low level of donation
- Cortinarius aiacapiiae — likely to require a low level of donation
- Cortinarius albertii — likely to require a low level of donation
- Cortinarius albescens — likely to require a low level of donation
- Cortinarius albiceps — likely to require a low level of donation
- Cortinarius albidifolius — likely to require a low level of donation
- Cortinarius albidiformis — likely to require a low level of donation
- Cortinarius albidipes — likely to require a low level of donation
- Cortinarius albidoavellaneus — likely to require a low level of donation
- Cortinarius albidocyaneus — likely to require a low level of donation
- Cortinarius albidodiscus — likely to require a low level of donation
- Cortinarius albidofuscescens — likely to require a low level of donation
- Cortinarius albidogriseus — likely to require a low level of donation
- Cortinarius albidolilacinus — likely to require a low level of donation
- Cortinarius albidulus — likely to require a low level of donation
- Cortinarius albidus — likely to require a low level of donation
- Cortinarius albo-ochraceus — likely to require a low level of donation
- Cortinarius alboadustus — likely to require a low level of donation
- Cortinarius alboaggregatus — likely to require a low level of donation
- Cortinarius alboamarescens — likely to require a low level of donation
- Cortinarius alboambitus — likely to require a low level of donation
- Cortinarius alboannulatus — likely to require a low level of donation
- Cortinarius albobrunneus — likely to require a low level of donation
- Cortinarius albobrunnoides — likely to require a low level of donation
- Cortinarius albocanus — likely to require a low level of donation
- Cortinarius albocinctus — likely to require a low level of donation
- Cortinarius albocyaneus — likely to require a low level of donation
- Cortinarius albofimbriatus — likely to require a low level of donation
- Cortinarius albofragrans — likely to require a low level of donation
- Cortinarius albofulminescens — likely to require a low level of donation
- Cortinarius albogaudis — likely to require a low level of donation
- Cortinarius alboglobosus — likely to require a low level of donation
- Cortinarius albolens — likely to require a low level of donation
- Cortinarius albolilascens — likely to require a low level of donation
- Cortinarius albolutescens — likely to require a low level of donation
- Cortinarius alboluteus — likely to require a low level of donation
- Cortinarius albomaculans — likely to require a low level of donation
- Cortinarius albomaculatus — likely to require a low level of donation
- Cortinarius albonigrellus — likely to require a low level of donation
- Cortinarius alboroseus — likely to require a low level of donation
- Cortinarius alborufescens — likely to require a low level of donation
- Cortinarius albosericeus — likely to require a low level of donation
- Cortinarius alboserrulatus — likely to require a low level of donation
- Cortinarius albovariegatus — likely to require a low level of donation
- Cortinarius albovestitus — likely to require a low level of donation
- Cortinarius alboviolaceus — likely to require a low level of donation
- Cortinarius alcalinophilus — likely to require a low level of donation
- Cortinarius aleuriodor — likely to require a low level of donation
- Cortinarius aleuriolens — likely to require a low level of donation
- Cortinarius aleuriosmus — likely to require a low level of donation
- Cortinarius alexandri — likely to require a low level of donation
- Cortinarius algonquinensis — likely to require a low level of donation
- Cortinarius alkalivirens — likely to require a low level of donation
- Cortinarius allutoides — likely to require a low level of donation
- Cortinarius allutus — likely to require a low level of donation
- Cortinarius alneti — likely to require a low level of donation
- Cortinarius alnetorum — likely to require only a small donation
- Cortinarius alneus — likely to require a low level of donation
- Cortinarius alnobetulae — likely to require a low level of donation
- Cortinarius alnophilus — likely to require a low level of donation
- Cortinarius alpicola — likely to require a low level of donation
- Cortinarius alpinus — likely to require a low level of donation
- Cortinarius alsomatii — likely to require a low level of donation
- Cortinarius altae-herbae — likely to require a low level of donation
- Cortinarius alter — likely to require a low level of donation
- Cortinarius alterplex — likely to require a low level of donation
- Cortinarius alticaudus — likely to require a low level of donation
- Cortinarius altipes — likely to require a low level of donation
- Cortinarius altissimus — likely to require a low level of donation
- Cortinarius altomellitus — likely to require a low level of donation
- Cortinarius alutaceo-olivascens — likely to require a low level of donation
- Cortinarius alutaceofulvus — likely to require a low level of donation
- Cortinarius alutaceogrisescens — likely to require a low level of donation
- Cortinarius alutaceopallens — likely to require a low level of donation
- Cortinarius alutipes — likely to require a low level of donation
- Cortinarius amabilis — likely to require a low level of donation
- Cortinarius amanitopsidoides — likely to require a low level of donation
- Cortinarius amarellus — likely to require a low level of donation
- Cortinarius amarissimus — likely to require a low level of donation
- Cortinarius amarocaerulescens — likely to require a low level of donation
- Cortinarius amarus — likely to require a low level of donation
- Cortinarius amazonicus — likely to require a low level of donation
- Cortinarius ambiens — likely to require a low level of donation
- Cortinarius americanus — likely to require a low level of donation
- Cortinarius amigochrous — likely to require a low level of donation
- Cortinarius ammiratii — likely to require a low level of donation
- Cortinarius ammoniacosplendens — likely to require a low level of donation
- Cortinarius ammophiloides — likely to require a low level of donation
- Cortinarius ammophilus — likely to require a low level of donation
- Cortinarius amnicola — likely to require a low level of donation
- Cortinarius amoenolens — likely to require a low level of donation
- Cortinarius amoenus — likely to require a low level of donation
- Cortinarius amphibalaustius — likely to require a low level of donation
- Cortinarius amurceus — likely to require a low level of donation
- Cortinarius anauensis — likely to require a low level of donation
- Cortinarius andreae — likely to require a low level of donation
- Cortinarius anetholens — likely to require a low level of donation
- Cortinarius anfractoides — likely to require a low level of donation
- Cortinarius anfractus — likely to require a low level of donation
- Cortinarius angelesianus — likely to require a low level of donation
- Cortinarius angulatus — likely to require a low level of donation
- Cortinarius angulatus b gracilescens — likely to require a low level of donation
- Cortinarius angulosus — likely to require a low level of donation
- Cortinarius angustilamellatus — likely to require a low level of donation
- Cortinarius angustisporus — likely to require a low level of donation
- Cortinarius anisatus — likely to require a low level of donation
- Cortinarius anisochrous — likely to require a low level of donation
- Cortinarius anisodorus — likely to require a low level of donation
- Cortinarius annae-maritae — likely to require a low level of donation
- Cortinarius annexus — likely to require a low level of donation
- Cortinarius annulatus — likely to require a low level of donation
- Cortinarius anomalellus — likely to require a low level of donation
- Cortinarius anomalo-ochrascens — likely to require a low level of donation
- Cortinarius anomalochrascens — likely to require a low level of donation
- Cortinarius anomalovelatus — likely to require a low level of donation
- Cortinarius anomalus — likely to require a low level of donation
- Cortinarius anserinus — likely to require a low level of donation
- Cortinarius antarcticus — likely to require a low level of donation
- Cortinarius anthracinicolor — likely to require a low level of donation
- Cortinarius anthracinoides — likely to require a low level of donation
- Cortinarius anthracinus — likely to require a low level of donation
- Cortinarius anuliferus — likely to require a low level of donation
- Cortinarius apomorphus — likely to require a low level of donation
- Cortinarius appalachiensis — likely to require a low level of donation
- Cortinarius apparens — likely to require a low level of donation
- Cortinarius apparens var. apparens — likely to require a low level of donation
- Cortinarius appendiculatus — likely to require a low level of donation
- Cortinarius appennini — likely to require a low level of donation
- Cortinarius aprinus — likely to require a low level of donation
- Cortinarius aptecohaerens — likely to require a low level of donation
- Cortinarius aquilanus — likely to require a low level of donation
- Cortinarius arachnoideus — likely to require a low level of donation
- Cortinarius araneosovolvatus — likely to require a low level of donation
- Cortinarius arcabucensis — likely to require a low level of donation
- Cortinarius arcanus — likely to require a low level of donation
- Cortinarius archeri — likely to require a low level of donation
- Cortinarius archeuretus — likely to require a low level of donation
- Cortinarius arcifolius — likely to require a low level of donation
- Cortinarius arcuatorum — likely to require a low level of donation
- Cortinarius ardesiacus — likely to require a low level of donation
- Cortinarius arduus — likely to require a low level of donation
- Cortinarius aremoricus — likely to require a low level of donation
- Cortinarius arenarius — likely to require a low level of donation
- Cortinarius arenatus — likely to require a low level of donation
- Cortinarius arenicola — likely to require a low level of donation
- Cortinarius areolatoimbricatus — likely to require a low level of donation
- Cortinarius argentatus — likely to require a low level of donation
- Cortinarius argenteocrinitus — likely to require a low level of donation
- Cortinarius argenteohygrophanus — likely to require a low level of donation
- Cortinarius argenteolilacinus — likely to require a low level of donation
- Cortinarius argenteopileatus — likely to require a low level of donation
- Cortinarius argentostriaepes — likely to require a low level of donation
- Cortinarius argentum-silvae — likely to require a low level of donation
- Cortinarius argillaceoincarnatus — likely to require a low level of donation
- Cortinarius argillohygrophanicus — likely to require a low level of donation
- Cortinarius argillopallidus — likely to require a low level of donation
- Cortinarius argumentosus — likely to require a low level of donation
- Cortinarius argutiformis — likely to require a low level of donation
- Cortinarius argutipes — likely to require a low level of donation
- Cortinarius argutus — likely to require a low level of donation
- Cortinarius argutus var. rammii — likely to require a low level of donation
- Cortinarius argyrionus — likely to require a low level of donation
- Cortinarius argyronotus — likely to require a low level of donation
- Cortinarius argyrophilus — likely to require a low level of donation
- Cortinarius aridus — likely to require a low level of donation
- Cortinarius armeniacellus — likely to require a low level of donation
- Cortinarius armeniacovelatus — likely to require a low level of donation
- Cortinarius armeniacus — likely to require a low level of donation
- Cortinarius armenicorius — likely to require a low level of donation
- Cortinarius armiae — likely to require a low level of donation
- Cortinarius armillariellus — likely to require a low level of donation
- Cortinarius armillariopsis — likely to require a low level of donation
- Cortinarius armillatoazureus — likely to require a low level of donation
- Cortinarius armillatus — likely to require a low level of donation
- Cortinarius armillifer — likely to require a low level of donation
- Cortinarius arnoldae — likely to require a low level of donation
- Cortinarius aromaticus — likely to require a low level of donation
- Cortinarius aromatizans — likely to require a low level of donation
- Cortinarius arquatus — likely to require a low level of donation
- Cortinarius arvalis — likely to require a low level of donation
- Cortinarius arvinaceoides — likely to require a low level of donation
- Cortinarius arvinaceus — likely to require a low level of donation
- Cortinarius aspenensis — likely to require a low level of donation
- Cortinarius asper — likely to require a low level of donation
- Cortinarius aspilus — likely to require a low level of donation
- Cortinarius assiduus — likely to require a low level of donation
- Cortinarius assumptus — likely to require a low level of donation
- Cortinarius athabascus — likely to require a low level of donation
- Cortinarius atkinsonianus — likely to require a low level of donation
- Cortinarius atrialbus — likely to require a low level of donation
- Cortinarius atribadius — likely to require a low level of donation
- Cortinarius atripes — likely to require a low level of donation
- Cortinarius atroacutus — likely to require a low level of donation
- Cortinarius atroalbus — likely to require a low level of donation
- Cortinarius atrochalybaeus — likely to require a low level of donation
- Cortinarius atrocoeruleoides — likely to require a low level of donation
- Cortinarius atrocoeruleus — likely to require a low level of donation
- Cortinarius atrofuscus — likely to require a low level of donation
- Cortinarius atrolazulinus — likely to require a low level of donation
- Cortinarius atropileatus — likely to require a low level of donation
- Cortinarius atropurpureus — likely to require a low level of donation
- Cortinarius atropusillus — likely to require a low level of donation
- Cortinarius atrotomentosus — likely to require a low level of donation
- Cortinarius atroviolaceus — likely to require a low level of donation
- Cortinarius atrovirens — likely to require a low level of donation
- Cortinarius auacapuae — likely to require a low level of donation
- Cortinarius auchmerus — likely to require a low level of donation
- Cortinarius aurantiacoides — likely to require a low level of donation
- Cortinarius aurantiacus — likely to require a low level of donation
- Cortinarius aurantiobasalis — likely to require a low level of donation
- Cortinarius aurantiobasis — likely to require a low level of donation
- Cortinarius aurantiobrunneus — likely to require a low level of donation
- Cortinarius aurantiocaeruleus — likely to require a low level of donation
- Cortinarius aurantioferreus — likely to require a low level of donation
- Cortinarius aurantiofulvus — likely to require a low level of donation
- Cortinarius aurantiolamellatus — likely to require a low level of donation
- Cortinarius aurantiomarginatus — likely to require a low level of donation
- Cortinarius aurantionapus — likely to require a low level of donation
- Cortinarius aurantiopallidus — likely to require a low level of donation
- Cortinarius aurantiorufus — likely to require a low level of donation
- Cortinarius aurantiosplendidus — likely to require a low level of donation
- Cortinarius aurantiotinctus — likely to require a low level of donation
- Cortinarius aurantiovillosus — likely to require a low level of donation
- Cortinarius aurasiacus — likely to require a low level of donation
- Cortinarius auratior — likely to require a low level of donation
- Cortinarius aureifer — likely to require a low level of donation
- Cortinarius aureifer f. aureifer — likely to require a low level of donation
- Cortinarius aureifer f. rarus — likely to require a low level of donation
- Cortinarius aureifolius — likely to require a low level of donation
- Cortinarius aureifolius var. psammophilus — likely to require a low level of donation
- Cortinarius aureobasalis — likely to require a low level of donation
- Cortinarius aureobrunneus — likely to require a low level of donation
- Cortinarius aureobtusus — likely to require a low level of donation
- Cortinarius aureocalceolatus — likely to require a low level of donation
- Cortinarius aureocistophilus — likely to require a low level of donation
- Cortinarius aureofulvus — likely to require a low level of donation
- Cortinarius aureolus — likely to require a low level of donation
- Cortinarius aureoluteus — likely to require a low level of donation
- Cortinarius aureomarginatus — likely to require a low level of donation
- Cortinarius aureomyceliosus — likely to require a low level of donation
- Cortinarius aureopigmentatus — likely to require a low level of donation
- Cortinarius aureopulverulentus — likely to require a low level of donation
- Cortinarius aureovelatus — likely to require a low level of donation
- Cortinarius aurescens — likely to require a low level of donation
- Cortinarius auricilis — likely to require a low level of donation
- Cortinarius aurilicis — likely to require a low level of donation
- Cortinarius aurora — likely to require a low level of donation
- Cortinarius auroripes — likely to require a low level of donation
- Cortinarius australiensis — likely to require a low level of donation
- Cortinarius australis — likely to require a low level of donation
- Cortinarius austroacutus — likely to require a low level of donation
- Cortinarius austroalbidus — likely to require a low level of donation
- Cortinarius austrocausticus — likely to require a low level of donation
- Cortinarius austrocinnabarinus — likely to require a low level of donation
- Cortinarius austroclaricolor — likely to require a low level of donation
- Cortinarius austrocyanites — likely to require a low level of donation
- Cortinarius austroduracinus — likely to require a low level of donation
- Cortinarius austroevernius — likely to require a low level of donation
- Cortinarius austrolimonius — likely to require a low level of donation
- Cortinarius austropacificus — likely to require a low level of donation
- Cortinarius austropallescens — likely to require a low level of donation
- Cortinarius austrosaginus — likely to require a low level of donation
- Cortinarius austrosalor — likely to require a low level of donation
- Cortinarius austroserarius — likely to require a low level of donation
- Cortinarius austrotorvus — likely to require a low level of donation
- Cortinarius austroturmalis — likely to require a low level of donation
- Cortinarius austrovaginatus — likely to require a low level of donation
- Cortinarius austrovenetus — likely to require a low level of donation
- Cortinarius austroviolaceus — likely to require a low level of donation
- Cortinarius autumnalis — likely to require a low level of donation
- Cortinarius avellaneocoeruleus — likely to require a low level of donation
- Cortinarius avellaneus — likely to require a low level of donation
- Cortinarius avellanofulvus — likely to require a low level of donation
- Cortinarius ayanamii — likely to require a low level of donation
- Cortinarius azureocaninus — likely to require a low level of donation
- Cortinarius azureopallens — likely to require a low level of donation
- Cortinarius bacillifer — likely to require a low level of donation
- Cortinarius badioferrugineus — likely to require a low level of donation
- Cortinarius badioflammescens — likely to require a low level of donation
- Cortinarius badioflammeus — likely to require a low level of donation
- Cortinarius badioflavidus — likely to require a low level of donation
- Cortinarius badioflavus — likely to require a low level of donation
- Cortinarius badiolaevis — likely to require a low level of donation
- Cortinarius badiolatus — likely to require a low level of donation
- Cortinarius badiorufus — likely to require a low level of donation
- Cortinarius badiovestita — likely to require a low level of donation
- Cortinarius badiovestitus — likely to require a low level of donation
- Cortinarius badiovinaceus — likely to require a low level of donation
- Cortinarius badius — likely to require a low level of donation
- Cortinarius balaustinoides — likely to require a low level of donation
- Cortinarius balaustinus — likely to require a low level of donation
- Cortinarius balteatialutaceus — likely to require a low level of donation
- Cortinarius balteatibulbosus — likely to require a low level of donation
- Cortinarius balteaticlavatus — likely to require a low level of donation
- Cortinarius balteatoalbus — likely to require a low level of donation
- Cortinarius balteatocumatilis — likely to require a low level of donation
- Cortinarius balteatoscauroides — likely to require a low level of donation
- Cortinarius balteatotomentosus — likely to require a low level of donation
- Cortinarius balteatus — likely to require a low level of donation
- Cortinarius bambrus — likely to require a low level of donation
- Cortinarius barbaricus — likely to require a low level of donation
- Cortinarius barbarorum — likely to require a low level of donation
- Cortinarius barbatus — likely to require a low level of donation
- Cortinarius barlowensis — likely to require a low level of donation
- Cortinarius barrentium — likely to require a low level of donation
- Cortinarius basalis — likely to require a low level of donation
- Cortinarius basibulbosus — likely to require a low level of donation
- Cortinarius basicyaneus — likely to require a low level of donation
- Cortinarius basililaceus — likely to require a low level of donation
- Cortinarius basipurpureus — likely to require a low level of donation
- Cortinarius basiroseus — likely to require a low level of donation
- Cortinarius basirubescens — likely to require a low level of donation
- Cortinarius basitinctus — likely to require a low level of donation
- Cortinarius basivelatus — likely to require a low level of donation
- Cortinarius basivinosus — likely to require a low level of donation
- Cortinarius basorapulus — likely to require a low level of donation
- Cortinarius bataillei — likely to require a low level of donation
- Cortinarius batschii — likely to require a low level of donation
- Cortinarius bavaricus — likely to require a low level of donation
- Cortinarius bayeri — likely to require a low level of donation
- Cortinarius beeverorum — likely to require a low level of donation
- Cortinarius belleri — likely to require a low level of donation
- Cortinarius bellus — likely to require a low level of donation
- Cortinarius benevalens — likely to require a low level of donation
- Cortinarius benovairensis — likely to require a low level of donation
- Cortinarius bergeronii — likely to require a low level of donation
- Cortinarius bergistanensis — likely to require a low level of donation
- Cortinarius berlesianus — likely to require a low level of donation
- Cortinarius betulaecomes — likely to require a low level of donation
- Cortinarius betuletorum — likely to require a low level of donation
- Cortinarius betulinus — likely to require a low level of donation
- Cortinarius beugii — likely to require a low level of donation
- Cortinarius bibulus — likely to require only a small donation
- Cortinarius bidaudii — likely to require a low level of donation
- Cortinarius bidiscendus — likely to require a low level of donation
- Cortinarius biformis — likely to require a low level of donation
- Cortinarius biformis var. dilatus — likely to require a low level of donation
- Cortinarius bigelowii — likely to require a low level of donation
- Cortinarius biodoratus — likely to require a low level of donation
- Cortinarius birchfieldii — likely to require a low level of donation
- Cortinarius biriensis — likely to require a low level of donation
- Cortinarius birkebakii — likely to require a low level of donation
- Cortinarius bisporiger — likely to require a low level of donation
- Cortinarius bisporus — likely to require a low level of donation
- Cortinarius bistreoides — likely to require a low level of donation
- Cortinarius biveloides — likely to require a low level of donation
- Cortinarius bivelosimilis — likely to require a low level of donation
- Cortinarius bivelus — likely to require a low level of donation
- Cortinarius blandulus — likely to require a low level of donation
- Cortinarius blatensis — likely to require a low level of donation
- Cortinarius blattoi — likely to require a low level of donation
- Cortinarius bohemicus — likely to require a low level of donation
- Cortinarius bolaris — likely to require a low level of donation
- Cortinarius bolbitioides — likely to require a low level of donation