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

Arcyria insignis Kalchbr. & Cooke, in Kalchbr., Grevillea 10: 143. 1882.

   
 
 
 
 
 Description: Fructification sporangiate, crowded in small clusters, scattered to gregarious, 1.0 - 1.8 mm tall after expansion. Sporangia shortly stipitate, pale salmon, peach red (bright) to cream buff, cylindrical to ovoid, 0.30 - 0.51mm in diameter, up to 0.8 mm after expanding (base of sporangia). Peridium membranous, fugacious. Calyculus disk-like, shallow, plicate, echinulate, warted, or reticulate on the inner surface. Stalk short, about 0.12-0.35 mm long, sometimes weak, pale salmon, or redish above, becoming dark below, translucent, filled with large spore-like vesicles. Hypothallus continuous, membranous and transparent, pale. Capillitium firmly attached to the calyculus, pale salmon, or tawny with age, elastic, consisting of close and anastomosing threads with few bulbous free ends, marked with spines, transverse cogs or rings, 2-3 μm in diameter (cogs not included), those close to the calyculus smoother. Spores pinkish (pale salmon) in mass, colorless by transmitted light, rounded, 5-9 μm (mostly 6-8 μm) in diameter, nearly smooth by high dry lens, with a few scattered and inconspicuous warts.
 
 
 
 
 
 Specimens:

Taipei City: 14 Jun 1982, CHL B120, CHL B121; NTU campus, 25 Jun 1996, Y.F. Chen 276. Nantou County: Ta-yu-ling, Mt. Hohuan, 28 June 1982, CHL B129a.

 
 
 
 Habitat: On dead leaves (of Caryota urens Linn.), bark of living trees (Bischofia javanica Blume.).
 
 
 
 Distribution:

Cosmopolitan.

 
 
 
 References:

Farr, ML. 1976; Liu, CH. 1983.

   
   
   
 Provided:

C. H. Liu

 
 
 Note: Spores of this specimen have larger range than that of Arcyria insignis as described in Martin & Alexopoulos (1969). The distinctive characters of this species that separate it from A. denudata are the color (paler) and size (smaller) of the sporangia, and the capilliltial markings.