Marasmiellus affixus- Marasmiellus albifolius
- Marasmiellus albobrunnescens
- Marasmiellus albofuscus
- Marasmiellus alliiodorus
- Marasmiellus alneus
- Marasmiellus alvaradoi
- Marasmiellus ambiguus
- Marasmiellus amphicystis
- Marasmiellus androsaceiformis
- Marasmiellus angustispermus
- Marasmiellus aporposeptus
- Marasmiellus aquilus
- Marasmiellus aurantiorufescens
- Marasmiellus baeosporus
- Marasmiellus bambusicola
- Marasmiellus bauhiniae
- Marasmiellus bermudensis
- Marasmiellus bisporicer
- Marasmiellus bisporiger
- Marasmiellus bolivarianus
- Marasmiellus bonaerensis
- Marasmiellus caatingensis
- Marasmiellus caesioater
- Marasmiellus caespitosus
- Marasmiellus californicus
- Marasmiellus candidus
- Marasmiellus caracasensis
- Marasmiellus carneopallidus
- Marasmiellus castaneidiscus
- Marasmiellus cataniariensis
- Marasmiellus catephes
- Marasmiellus chamaecyparidis
- Marasmiellus cinereus
- Marasmiellus clougatisporus
- Marasmiellus clusilis
- Marasmiellus cnacopolius
- Marasmiellus cocoensis
- Marasmiellus cocosensis
- Marasmiellus coilobasis
- Marasmiellus columbianus
- Marasmiellus concolor
- Marasmiellus confertifolius
- Marasmiellus corticum
- Marasmiellus corynophloeus
- Marasmiellus couleu
- Marasmiellus crinipelloides
- Marasmiellus cubensis
- Marasmiellus curtipes
- Marasmiellus cystidiosus
- Marasmiellus daguae
- Marasmiellus dealbatus
- Marasmiellus defibulatus
- Marasmiellus dendroegrus
- Marasmiellus devenulatus
- Marasmiellus distantifolius
- Marasmiellus dryogeton
- Marasmiellus earlei
- Marasmiellus eburneus
- Marasmiellus echinocephalus
- Marasmiellus elongatisporus
- Marasmiellus enodis
- Marasmiellus epibryus
- Marasmiellus epochnous
- Marasmiellus eugeniae
- Marasmiellus filopes
- Marasmiellus foliicola
- Marasmiellus fusicystis
- Marasmiellus gigantosporus
- Marasmiellus gilvus
- Marasmiellus gomez-pompae
- Marasmiellus graminis
- Marasmiellus guadelupensis
- Marasmiellus guzmanii
- Marasmiellus helminthocystis
- Marasmiellus hirtellus
- Marasmiellus hondurensis
- Marasmiellus hypolissus
- Marasmiellus idroboi
- Marasmiellus ignobilis
- Marasmiellus iguazuensis
- Marasmiellus illinorum
- Marasmiellus incarnatipallens
- Marasmiellus inconspicuus
- Marasmiellus incrustatus
- Marasmiellus inoderma
- Marasmiellus inodermatoides
- Marasmiellus juniperinus
- Marasmiellus laschiopsis
- Marasmiellus lateralis
- Marasmiellus laurifoliae
- Marasmiellus lecythidacearum
- Marasmiellus leptophyllus
- Marasmiellus leucophyllus
- Marasmiellus luteus
- Marasmiellus maritimus
- Marasmiellus merulius
- Marasmiellus mesosporus
- Marasmiellus microscopicus
- Marasmiellus minutalis
- Marasmiellus minutus
- Marasmiellus misionensis
- Marasmiellus musacearum
- Marasmiellus napoensis
- Marasmiellus nivosus
- Marasmiellus nodosus
- Marasmiellus nubigenus
- Marasmiellus oblongisporus
- Marasmiellus oligocinsulae
- Marasmiellus pachycraspedum
- Marasmiellus pacificus
- Marasmiellus paludosus
- Marasmiellus panamensis
- Marasmiellus panamonsis
- Marasmiellus pandoensis
- Marasmiellus papillatomarginatus
- Marasmiellus papillatus
- Marasmiellus paraensis
- Marasmiellus parlatorei
- Marasmiellus peckii
- Marasmiellus perangustispermus
- Marasmiellus perfocans
- Marasmiellus pernambucensis
- Marasmiellus petiolicola
- Marasmiellus petiolorum
- Marasmiellus phaeomarasmioides
- Marasmiellus phaeophyllus
- Marasmiellus picipes
- Marasmiellus pilosus
- Marasmiellus plathyphes
- Marasmiellus platyhyphes
- Marasmiellus pluvius
- Marasmiellus polyphyllus
- Marasmiellus potamogeton
- Marasmiellus pouzarii
- Marasmiellus praeacutus
- Marasmiellus pruinosulus
- Marasmiellus pseudogracilis
- Marasmiellus pseudoparaphysatus
- Marasmiellus pseudoramealis
- Marasmiellus quercinus
- Marasmiellus ramealis
- Marasmiellus rhodophyllus
- Marasmiellus riberaltensis
- Marasmiellus roseipallens
- Marasmiellus rubellus
- Marasmiellus rugulosus
- Marasmiellus sanctae-marthae
- Marasmiellus schiffneri
- Marasmiellus sprucei
- Marasmiellus stenocystis
- Marasmiellus stenophylloides
- Marasmiellus stenosporus
- Marasmiellus stratosus
- Marasmiellus subcoracinus
- Marasmiellus subfumosus
- Marasmiellus subgraminis
- Marasmiellus subinodermatoides
- Marasmiellus subolivaceomelleus
- Marasmiellus subramealis
- Marasmiellus synodicus
- Marasmiellus tener
- Marasmiellus tenerrimus
- Marasmiellus tetrachrous
- Marasmiellus thaxteri
- Marasmiellus trichodermialis
- Marasmiellus tricolor
- Marasmiellus tropicalis
- Marasmiellus troyanus
- Marasmiellus umbilicatus
- Marasmiellus umbonifer
- Marasmiellus vaillantii
- Marasmiellus varzeae
- Marasmiellus vinosus
- Marasmiellus virgatocutis
- Marasmiellus viridifuscus
- Marasmiellus volvatus
- Marasmiellus yalae