Pragmopora pithya
Pragmopora pithya (Fr.) J.W. Groves, Can. J. Bot. 45: 176 (1967)
= Pragmopycnis pithya B. Sutton & A. Funk, Can. J. Bot. 53(6): 522 (1975)
Habit on twigs of Pseudotsuga menziesii (Pinaceae) (Sutton and Funk 1975). Sexual morph: see Sutton and Funk (1975). Asexual morph: Conidiomata 200–500 µm diam., brown, stromatic, pycnidial, solitary, sparse, superficial, short stipitate, subglobose, unilocular, glabrous. Ostiole absent, dehiscence by irregular splits of the apical wall. Conidiomatal wall composed of thick-walled, dark brown to black cells of textura angularis in the exterior, becoming thinner, paler towards conidial hymenium. Conidiophores arising mainly from inner layers of basal stroma, hyaline, irregular, branched irregularly and ramifying throughout the locule, septate, smooth-walled. Conidiogenous cells hyaline, enteroblastic, polyphialidic, cylindrical to lageniform, integrated, indeterminate, smooth-walled, terminal or intercalary, with minute apertures and collarettes. Conidia 3–4 × 1 µm, hyaline, fusiform to allantoid, unicellular, smooth-walled, guttulate (adapted from Sutton and Funk 1975).
Pragmopora pithya (asexual morph, redrawn from Sutton 1980) a Conidia. b Vertical section of conidioma. c Conidiophores, conidiogenous cells and developing conidia.
References:
Li WJ, McKenZie EHC, Liu JK, Bhat DJ, Dai DQ, Caporesi E, Tian Q, Maharachcikumbura SSN, Luo ZL, Shang QJ, Zhang JF, Tangthirasunun N, Karunarathna SC, Xu JC, Hyde KD (2020) Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100: pages279–801.
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