Phylum：Myxomycota　>>　Class： Myxomycetes　>>　 Order： Trichiales 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Hemitrichia velutina
 
   
   
　Author：

Hemitrichia velutina Nann.-Brem. & Y. Yamam., Proc. Kon. Ned. Akad. Wetensch., C. 89: 233. 1986.
   
 
 
 
 
　Description： Fructifications sporangiate, scattered or solitary, total height 0.9 -1.1 mm. Sporangia globose, 0.25-0.45 mm in diameter, areolate, with chestnut brown patches arranged in a reticulate pattern over the ochraceous yellow background which in most cases displaying as reticulate, narrow bands on the peridium except at the base which remains as a cup at dehiscence. Stalk erect or bending, ca 2/3 of total height (0.61-0.64 mm), dark brown to blackish below, paler above, attenuate upwards, with longitudinal ridges. Hypothallus inconspicuous, membranous and transparent. Peridium double, the outer layer cartilaginous, chestnut brown, in reticulate patches, appearing irregularly roughened under scanning microscope; inner layer membranous, transparent (represented by the reticulate, ochraceous yellow bands of the sporangia), dehiscence along the lines of the exposing inner layer on the upper part. Capillitium ochraceous yellow, tubes long and flexuose, with 3 spiral bands and minute spinules (discernible under oil immersion lens), 3-4 μm in diameter, sparingly branched, free ends few, rounded , bearing a 7-9 μm long spines. Spores ochraceous yellow, pale yellow by transmitted light, globose, subglobose, 8-9 μm in diameter, minutely spinulate or warted. Plasmodium not observed.
 
 
 
 
 
　Specimens：

Taipei County: Shih-ting, Wenshan Botanical Gardens of National Taiwan University, 12 June 1999 (moist chamber culture), Yang99-6C3B1.
 
 
 
　Habitat： On bark of Cryptomeria japonica.
 
 
 
　Distribution：

Asia (Japan, Taiwan).
 
 
 
　References：

Nannenga-Bremekamp, NE and Yamamoto, Y. 1986.; Liu, CH et al. 2002a.
   
   
   
　Provided：

C. H. Liu
 
 
　Note： The distinctive fruiting body and the long flexuose capillitial threads bearing a long spines at its rounded free ends are main characteristics based for our identification, although our specimen is shorter in the total height of fruiting bodies than the type species (Nannenga-Bremekamp and Yamamoto, 1986). This species resembles Trichia botrytis in outer appearance of the sporangia, but the latter different from H. velutina in having larger fruiting body, and elaters with long, slender, accuminate tips.