Two new hyphomycetes from rainforests of Cuba

摘要

Two new dematiaceous hyphomycetes,Arachnophora hughesiiR.F. Castañeda et Guarro found on decaying pods ofSamanea samansandCamposporidium hughesiiR.F. Castañeda et Guarro found on decaying bark submerged in stream, both in a tropical rainforest are described and illustrated. The former is distinguished by staurosporous conidia composed of a obconical, pale olivaceous, fimbriate basal cell, 1-2 subdoliiform, hemisphaerical to irregular, olivaceous central cells, and 2-5 tapered, horn-like or conical, 0-1 septate, pale, olivaceous arms. ASelenosporella-like synanamorph is present at the apex of the arms. Conidia fusiform to cylindrical, 10-15 euseptate, brown, verrucose, with several filiform, hyaline, branched or unbranched cellular appendages that arise from the last two subapical cells at right angles to the axis of the conidium characterized the latter. Notes on closely related species are given.Key words:Arachnophora hughesii, Camposporidium hughesii, hyphomycetes, mitosporic fungi, Cub