Phylum:Ascomycota >> Class: Ascomycetes >>  Order: Diaporthales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Gnomonia setacea

Gnomonia setacea (Pers.:Fr.) Ces. & de Not., Sfer. Ital. 1:58. 1863.

Basionym: Sphaeria setacea Pers. Ex Fries, Syst. Mycol. 2:518. 1823.

 Description: Ascomata on fallen leaves, hypophyllous, subglobose and occasionally irregular in venter, 140-240 μm wide, 120-190 μm high, immersed, with a protruding long neck, scattered to aggregated, mostly on midrib and lateral veins, not forming any leaf spots. Peridium 10-30 μm thick, externally composed of polygonal to compressed, 2-4 layered, brown cells, internally of 2-3 layered hyaline cells; surface of peridium of textura angularis, each cell up to 20 μm in diam. Necks long up to 1 mm, and 30-40 μm wide, pointed at the apex, periphysate, surface composed of parallel rows of elongated cells of textura porrecta. Asci numerous, loosening in the centrum, 8-spored, aparaphysate, cylindrical to fusiform, 23-48 × 4-8 μm, including the base which tapers to 4-14 μm long, slender stipe. Ascospores fusiform, 10-13 × 1.5-2 μm, overlapping biseriate to 4-seriate, hyaline, 1-septate in the middle, with a 1-1.5 μm long mucilaginous appendage at each end.

Taiwan, Nantou County, Wushe, 10 Mar. 1994, NCHUPP-2335.

 Habitat: On fallen leaves of Quercus variabilis Blume.

Asia, Europe, North America, Taiwan.


Barr, ME. 1978; Chen, CY and Hsieh,WH. 1996.


W. H. Hsieh

 Note: null