Comprehensive Description
provided by North American Flora
Physarum diderma Rost. Monog. 110. 1874
Physarum testaceum Sturgis, Colo. Coll. Publ. Sci. 12: 18. 1907.
Sporangia clustered, sessile or narrowly adnate, globose, pulvinate or polygonal by pressure, about 1 mm. in diameter, snow-white; peridium double, the outer layer dense, fragile, thick, calcareous, the inner delicate, translucent, membranous, sometimes remote; capillitium abundant, the nodes white, angular, sometimes uniting to form a pseudocolumella; spores black in mass, purplish-brown by transmitted light, rough, 10-12 p in diameter.
Type locality: Poland.
Habitat: Dead wood, bark and moss.
Distribution: Maine to Montana and Oregon, south to New York, Iowa and Colorado; Europe.
- bibliographic citation
- George Willard Martin, Harold William Rickett. 1949. FUNGI; MYXOMYCETES; CERATIOMYXALES, LICEALES, TEICHIALES, STEMONITALES, PHYSARALES. North American flora. vol 1. New York Botanical Garden, New York, NY
