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

Arcyria insignis Kalch.& Cooke var. major G. Lister, Mycet. ed. 3. 236. 1925.

Arcyria major (G. Lister) Ing, Trans. Brit. Mycol. Soc. 50: 556. 1967.
   
 
 
 
 
　Description： Fructifictons sporangiate, gregarious or clustered in scattered groups, up to 4 mm in total height when expanded. Sporangia cylindrical, subcylindrical, or ovoid, crimson, vinaceous-rufous (redish brown) to cream buff, 1.0-1.3 mm long, 0.4-0.7 mm wide, up to 3.3 mm long when expanded. Stalk short, 0.3-1.0 mm long, furrowed, redish above, becoming dark below, filled with spore-like vesicles. Hypothallus brownish, continuous, membranous, dark in some and than not membranous. Peridium membranous, fugacious except for the basal calyculus and few small fragments remained on the apex of expanded sporangia. Calyculus funnel-shaped, plicate, brownish tinted with red, or cream buff, echinulate or reticulate on the inside surface. Capillitium pale salmon, or tawny with age, highly elastic, consisting of close and anastomosing threads with few free ends, 5-7 μm in diameter, densely and prominently marked with spines, half rings, and rings, those close to calyculus smoother, free ends accusely or truncately pointed. Spores pinkish (pale salmon) in mass, mostly 7-8 μm (6.5-8.5 μm), marked with few scattered warts.
 
 
 
 
 
　Specimens：

Nantou County: Yü-ch’ih Hsiang, 26 Nov 1979, CHL M30.
 
 
 
　Habitat： On dead wood.
 
 
 
　Distribution：

Not common. Europe, Brazil, Ceylon, China, Japan, Taiwan.
 
 
 
　References：

Nannenga-Bremekamp, NE. 1991; Liu, CH. 1980 (reported as A. insignis var. major).
   
   
   
　Provided：

C. H. Liu
 
 
　Note： A quite distinct and recognizable species in the field by the compact clusters of sporangia which are pinkish when expanded. The coral-red sporangia when fully expanded, and the highly elastic capillitium remained attached but easily blown out of the basal cup are distinct characters separating this species from other cylindrical form of Arcyria. Arcyria denudata collected shows somewhat similar to A. major in the surface markings of capillitial threads.