Pyrenomycetes Species Page

Caudatispora biapiculata

Small clustered ascomata
Huhndorf & F.A. Fernández, Sydowia 51(1): 133 (1999)

Incertae sedis
Figure from SMH1873
Complete Description
Ascomata ovoid; 250-275 µm diameter, 250-350 µm high; numerous; gregarious; superficial, clustered on a basal stroma; short papillate; surface roughened; red-brown with a slightly darker papilla. Ascomatal wall of textura globosa in surface view; in longitudinal section 30-50 µm, 2-layered, composed of polygonal to elongate, pseudoparenchymatic cells, without an external melanized crust; outer cells brown, polygonal, breaking and rupturing on the ascomal surface; inner cells hyaline to brown, flattened, elongate. Ascomatal apex short papillate; ostiole circular, with periphyses. Paraphyses 2-3 µm wide; abundant; persistent; narrow tapering; with gelatinous coating. Asci cylindrical to cylindro-clavate; 160-200 x 15-16.5 µm; short-stipitate (stipe 35-65 µm long); numerous; basal and lateral, lining the peripheral wall of the centrum; unitunicate; apex blunt, with a shallow, refractive, J-, non-fluorescent ring; with 8 biseriate to triseriate ascospores. Ascospores fusiform, with apiculate ends as elongate extensions of the wall; entire spore including extensions 45-63(-72) x 6.2-8.4 µm, apical extension 2.8-7.5(-10.7) µm long, basal extension 9-13.7(-15) µm long; slightly curved; hyaline, becoming pale brown with wall extensions remaining hyaline; 0(-1) septate; smooth; sheath not seen; with basal, cushion-shaped to tapering appendage.