Pyrenomycetes Species Page

Carpoligna pleurothecii

Small separate ascomata
phragmospore
F.A. Fernández & Huhndorf, in Fernández, Lutzoni & Huhndorf, Mycologia 91(2): 254 (1999)

Sordariomycetidae
Incertae sedis
Figure from SMH2352, SMH2492, SMH3595, SMH2722
Mycobank ID: MB459418
Complete Description
Ascomata globose to subglobose, dark brown, 198-238 µm in diameter, 247-257 µm in height, mostly separate, scattered to gregarious, superficial to partly-immersed in the substratum, papillate, surface setose, especially at the apex; setae sparse to numerous, straight or slightly curved, thick-walled, multiseptate, with acute apices. Ascomatal wall of textura angularis in surface view, composed of polygonal to elongate pseudoparenchymatic cells, 12-22 µm thick. Ascomatal apex papillate, short, bluntly conical. Paraphyses sparse, simple, not interspersed among asci, disintegrating. Asci cylindro-clavate, sometimes short-stalked, 75-108 x 10-14 µm, unitunicate, thin-walled, rounded apex, a distinctive apical ring sometimes visible, with 8 ascospores irregularly biseriate above and uniseriate below. Ascospores fusiform, with rounded end cells, 17-25 x 4-6 µm, hyaline, three-septate, a large central, refractive guttule sometimes present in each cell. Conidiophores single, dark brown, discrete, multiseptate, 62-170 x 3.5-5 µm, with two or more rhizoids at the base. Conidia produced holoblastically in succession on repeated sympodial proliferations of the conidiogenous cell, distinctive teeth with blunted ends remaining after conidia detachment; hyaline, cylindrical-fusiform, 17-26 x 5.5-8 µm, sometimes inequilateral, three-septate, sometimes constricted, apical end rounded, with a basal hilum and accumulating in droplets on conidiophores. Anamorph. Pleurothecium recurvatum (Morgan) von Höhnel
Similar Taxa Comments
Ascospores from temperate collections are longer. Pleurothecium anamorph is very common.