Pleosporales » Astrosphaeriellaceae » Astrosphaeriella

Astrosphaeriella exorrhiza

Astrosphaeriella exorrhiza Boise, Sydowia 38: 117. 1985

Facesoffungi number: FoF 01224


Sexual morph: Ascomata arising singly, erumpent, becoming almost superficial, dark brown to black; in section 1–1.5 mm diam., conical, minutely papillate. Asci 230 ×12 µm, 8-spored, cylindrical, short pedicellate, with an ocular chamber and faint ring. Ascospores (68–)74–88 × 8–10 µm, 2-seriate, long fusiform, cinnamon brown, (3–)5 septate, slightly constricted at the septa, smooth walled, with mucilaginous drawn out at each end. Asexual morph: Undetermined. (Description from Hyde and Frohlich 1998)


Freshwater distribution: Ecuador (Hyde and Frohlich 1998)



Phookamsak R, Norphanphoun C, Tanaka K, Dai DQ, Luo ZL, Liu JK, Su HY, Bhat DJ, Bahkali AH, Mortimer PE, Xu JC, Hyde KD (2015) Towards a natural classification of Astrosphaeriella-like species; introducing Astrosphaeriellaceae and Pseudoastrosphaeriellaceae fam. nov. and Astrosphaeriellopsis, gen. nov. Fungal Divers 74:143–197.

Hyde KD, Frohlich J (1998) Fungi from palms XXXVII. the genus Astrosphaeriella, including ten new species. Sydowia 50:81–132



Figures 5054. Astrosphaeriella exorrhiza, 50. Appearance of ascoma on host surface, 51. Young and mature asci and trabeculae, 52–54. Ascospores with appendages at the ends. Scale bars: 50 = 200 um, 51–54 = 10 um (Hyde and Frohlich 1998)


Figure 1. Astrosphaeriella exorrhiza (MFLU 110242). a, Appearance of ascostromata on host surface, b. Section through ascostroma, c, d. Section through peridium (c = at sides, d = at the base), e. Trabeculate pseudoparaphyses, f–i. Asci, j–o. Ascospores. Scale bars: b = 200 μm, d, f–i = 50 μm, c, e, j–o = 20 μm


[from Liu et al. 2015: Material examined: THAILAND, Chiang Mai Province, Muang District, Doi Suthep, on dead stem of Thysanolaena maxima (Roxb.) Kuntze (Poaceae), 5 June 2011, R. Phookamsak, RP0124 (MFLU 11-0242).]


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