Phylum:Ascomycota >> Class: Ascomycetes >>  Order: Xylariales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Anthostomella castnopsis

Anthostomella castnopsis W. H. Hsieh & C. Y. Chen, China-Graphics Taichung, Taiwan:25-27. 2000.

 Description: Ascomata globose to depressed globose, flattened at the base, 520-780 μm wide, 580-700 μm high, scattered, immersed, strongly raising the overlying host tissues, neck up to 210 μm high, stout, stromatic, melanized, 60-120 μm thick, with a erumpent papillate oatiole. Peridium 30-40 μm wide, composed of 8-10 layers of thick-walled, brown cells which are polygonal anf darker towards the inside, depressed and paler toward the outside. Paraphyses numerous, 2-4 μm wide. Asci cylindrical, 200-240 × 16-24 μm, basal, unitunicate, pedicellate, stalk 25-65 μm long, apical ring 3-5 × 2-3 μm, amyloid. Ascospores elliptical, 28-36 × 9-12 μm, Obliquely uniseriate to partially biseriate, unequally 1-septate, constricted at the septum, the larger cell hyaline, 22.5-28 × 9-12 μm, rarely brown, with a rounded to pointed free end, the dwarf (small) cell hyaline, cordate, 5-8 × 5-6.5 μm, with the free end capped by mucilaginous cushion.

Taiwan, Hsinchu Hsien, Kuanwu, 26 Dec. 1994, NCHUPP-2334.

 Habitat: On dead stems of Castanopsis carlesii (Hemsl.) Hayata.



Hsieh, WH et al. 2000.


W. H. Hsieh

 Note: Three of Anthostomella have similar large cordate or rostrate dwarf cells (Francis, 1975; Hsieh, 1995). The ascospore size and shape of A. castanopsis is similar to that of A. appendiculosa (Berk. & Br.) Sacc., but A. castanopsis can be distinguished by the browder and less pigmentd larger cell and by the larger dwarf cell which has a distinctive apical mucilaginous cushion.