Phylum：Myxomycota　>>　Class： Myxomycetes　>>　 Order： Trichiales 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Arcyria cinerea
 
   
   
　Author：

Arcyria cinerea (Bull.)Pers, Syn. Fung. 184. 1801.

Basionym: Trichia cinerea Bulliard, Hist. Champ. Fr. 1: 120. 1791.
   
 
 
 
 
　Description： Sporangia stipitate, gregarious or scattered, gray to light ochraceous buff, or olive buff, subcylindrical or ovoid, rarely subglobose, 1.0-2.5 mm long, 0.50-0.88 mm at the broadest base. Stalk furrowed, shining, gray to dark near the base, 0.2-2.0 mm long, filled with sporelike vesicles; total height up to 4 mm. Peridium fugacious, except for few fragments remained on the capillitium, shining. Calyculus gray to olive buff, plicate below, nearly smooth or minutely papillose on the inside surface. Capillitium a close network of gray to light brownish threads, firmly attached to the calyculus, with many free ends which sharply or bluntly pointed, slender, (2-) 3-4 μm in diameter, densely warted or spinulose, those close to the base coarser, 3-8 μm in diameter, smooth or faintly warted. Spores pale gray or light-colored in mass, nearly colorless by transmitted light, rounded, marked with few inconspicuous and scattered warts in high dry lens, by SEM the scattered warts appeard as clusters of large tubercles, and the smooth area covered densely by fine spinules or warts, (5.5-) 6-8 μm in diameter.
 
 
 
 
 
　Specimens：

Taipei County: Wu-Lai, 12 Dec 1978, CHL M1. Nantou County: Yü-ch’ih Hsiang, 26 Nov 1979, CHL M32. Taipei City: Yang-ming Mt., 26 Sept 1982, CHL B271; Ch’i- hsing Mt., 19 Jan 1982, CHL B32.
 
 
 
　Habitat： On dead wood, logs and branches, barks of living trees, or plant debris.
 
 
 
　Distribution：

Cosmopolitan.
 
 
 
　References：

Liu, CH. 1980; 1983.
   
   
   
　Provided：

C. H. Liu
 
 
　Note： A common species and easily recognized by its color and shape although they are variable. The capillitium is quite dense and less expanded at maturity. Thoes growing on the bark of living trees are often smaller in size, with thiner capillitium and smaller spores too.