Species
species Xenasma aculeatum C.E. Gómez
species Xenasma amylosporum Parmasto
species Xenasma longicystidiatum Boidin & Gilles
species Xenasma parvisporum Pouzar
species Xenasma praeteritum (H.S. Jacks.) Donk
species Xenasma pruinosum (Pat.) Donk
species Xenasma pulverulentum (Litsch.) Donk
species Xenasma rimicola (P. Karst.) Donk
species Xenasma subclematidis S.S. Rattan
species Xenasma tulasnelloideum (Höhn. & Litsch.) Donk
species Xenasma vassilievae Parmasto
species Xenasmatella ardosiaca (Bourdot & Galzin) Stalpers
species Xenasmatella bicornis (Boidin & Gilles) Piątek
species Xenasmatella borealis (K.H. Larss. & Hjortstam) Duhem
species Xenasmatella caricis-pendulae (P. Roberts) Duhem
species Xenasmatella cinnamomea (Burds. & Nakasone) Stalpers
species Xenasmatella fibrillosa (Hallenb.) Stalpers
species Xenasmatella globigera (Hjortstam & Ryvarden) Duhem
species Xenasmatella insperata (H.S. Jacks.) Jülich
species Xenasmatella nasti (Boidin & Gilles) Stalpers
species Xenasmatella palmicola (Hjortstam & Ryvarden) Duhem
species Xenasmatella romellii Hjortstam
species Xenasmatella sanguinescens Svrček
species Xenasmatella subflavidogrisea (Litsch.) Oberw. ex Jülich
species Xenasmatella vaga (Fr.) Stalpers
species Xenosperma hexagonosporum Boidin & Gilles
species Xenosperma ludibundum (D.P. Rogers & Liberta) Oberw. ex Jülich
species Xenosperma murrillii Gilb. & M. Blackw.
species Xenosperma pravum Boidin & Gilles