Phylum：Myxomycota　>>　Class： Dictyosteliomycetes　>>　 Order： Dictyosteliales 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Polysphondylium pallidum
 
   
   
　Author：

Polysphondylium pallidum Olive, Proc. Amer. Acad. Arts Sci. 37: 342. 1901.
   
 
 
 
 
　Description： Sorocarps usually solitary, sometimes clustered, bearing 1-12 nodes, with 1-6 branches per whorl, not phototropic, often prostrate. Sorophores colorless, sinuous, 2.0-7.5 mm in length, bases clavate, 10.5-24.5 μm in diam at the thickest part, tips acuminate, simple, 2-5.5 μm in diam at a level 50 μm below the top. Branches delicate, 65-200 μm in length. Sori white, globose, terminal sori 68-205 μm in diam, lateral sori 30-102 μm in diam. Spores hyaline, oblong, usually 1.4-2.0 times longer than broad, mostly 5.0-7.7 × 3.0-4.8 μm, with conspicuous unconsolidated polar granules. Pseudoplasmodia radial, centralized, migrating with sorophore formation.
 
 
 
 
 
　Specimens：

Taiwan, Taipei: Yangmingshan, alt. 500 m, Hsu 12, 2001. Taoyuan: Hutoushan, alt. 200 m, Tai 2000-C02; Takuanshan, alt. 1600 m, Tai 2001-G12.
 
 
 
　Habitat： In forest soils.
 
 
 
　Distribution：

Cosmopolitan.
 
 
 
　References：

Yeh, ZY and Chien, CY. 1983; Hagiwara et al. 1992.
   
   
   
　Provided：

Z. Y. Yeh.
 
 
　Note： According to Hagiwara et al. (1992), this species complex may be composed of 5 subgroups, namely: “P. pallidum normal”, “P. pallidum (profuse)”, “P. pallidum(sparse)”, “P. pallidum (homothallic)”, and “P. pallidum(on macrocyst)”.