AnimaliaMelanosporalesCeratostomataceaeMarin-FelixYasminaGuarroJosepano-LiraJosé F.GarcíaDaniaillerAndrew N.StchigelAlberto M.Melanospora (Sordariomycetes, Ascomycota) and its relativesMycoKeys181220182018448112210.3897/mycokeys.44.29742 Microthecium ryvardenianum Aramb. & Gamundí, Agarica 6: 124. 1985.Notes.

This species is considered as doubtful because it presents morphological features atypical of Microthecium (e.g. allantoid ascospores when immature becoming striate when mature).