Phylum:Ascomycota >> Class: Ascomycetes >>  Order: Dothideales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Capronia nigerrima

Basionym: Sphaeria nigerrima Bloxam ex Currey, Trans. Linn. Soc. London 22: 272. 1858.

Capronia nigerrima (Blox.) M. E. Barr, Mycotaxon 412: 419-436. 1991.

 Description: Ascomata superficial on decorticated wood, scattered or gregarious, setose, forming loose hyphae which penetrate the underlying host cells or with base immersed in host tissue, globose or turbinate, 144-200 μm high, 140-200 μm wide. Setae dark brown, straight, rigid with acute ends, up to 55 μm long, 3-4.7 μm wide at base. Pseudoparaphyses lacking. Peridium 26-40 μm thick, composed of pseudoparenchymatous cells forming a textura angularis of brown, compressed inside and becoming darker outside. Asci 53-67 × 9.5-16 μm, bitunicate, clavate to braoadly cylindrical, with apex thicked, 8-spored. Ascospores 17-24 × 0.3 μm, elliptical to fusiform, brown, ends obtuse, uniseriate to biseriate inside ascus, dictyoseptate with 5-6 transverse septa and 1-5 longitudinal septa.

Taiwan, Taichung County, Anmashan, July, 1999, NCHUPP-2558.

 Habitat: On indet. wood.

North America and Taiwan.


Müller, E. et al. 1987; Wang, CL. 2000.


W. H. Hsieh

 Note: This fungus is similar to Capronia nigerrima in shape and size of ascospores but the ascomata are rarely in groups, not parasitic and nonstromatic. C. nigerrima is often parasitic on other old pyrenomycetous ascomata (Müller, Fisher, Samuels and Rossman, 1987).