Phylum:Myxomycota >> Class: Myxomycetes >>  Order: Trichiales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Perichaena depressa

Perichaena depressa Libert, Pl. Crypt. 378. 1837.

 Description: Fructification sporangiate, crowded in clusters. Sporangia sessile, flattened, usually polygonal from mutual pressure, chestnut brown to sooty black, less than 1 mm in diameter. Peridium double, the outer layer calcareous, thick, opaque, dark, closely appressed to the membranous inner layer, dehiscing circumscissile by a well defined flat lid. Capillitium an intricate net of hollow, branched and slender threads, yellow, the threads 2.0-2.5 μm in diameter, closely and slightly constricted along the length. Spores bright yellow (orange-buff to capucine yellow) in mass, pale yellowish by transmitted light, subglobose, minutely warted, 10-12 μm in diameter.

Taipei City, 16 Feb 1981, CHL M190; 18 Mar 1982, CHL B53. Taoyuan County: Taoyuan City, 6 Apr 1983, CHL B221. Taichung County : Huisun Forest Station, 1 Apr 1985, CHL B467. Chiayi County: Ali Mt., 12 Feb. 1987, CHL B701.

 Habitat: On dead wood and bark of twig.



Martin, GW and Alexopoulos, CJ. 1969; Liu, CH. 1982.


C. H. Liu

 Note: This is an easy to recognize species even in the field by its crowded, flattened and polygonal sporangia. The bright yellow spore mass and the circumscissile dehiscence are also distinct characters.