The Myxomycetes of the Miami Valley, Ohio. 35 



regard to the spores holds good so far as my specimens are 

 concerned. Badhamia magna Peck, I have never seen. 

 George Massee includes all four of these species in one com- 

 posite species, which he names Badhamia varia. 



3. Badhamia papaveracba B. & Rav. Sporangia sub- 

 globose or obovoid, substipitate or sessile, growing close 

 together ; the wall a thin violaceous membrane, rugulose and 

 iridescent, with a very thin coat of white granules of lime. 

 Stipe very short, brown or blackish, sometimes reduced to 

 merely a thickened blackish base to the sporangium. Capil- 

 litium of thick tubules, forming an open net-work of large 

 meshes, more or less expanded at the angles; the tubules 

 with an inner lining of very minute white granules of lime. 

 Spores adhering together in clusters of six to twenty, each 

 spore subobovoid, the free portion more distinctly warted, 

 10-12 mic. in diameter. 



Growing on old wood, bark, etc. Sporangia .6-1.0 mm. in 

 diameter. Readily distinguished by its black base or black 

 stipe and the elegant clusters of its spores, which stick 

 together most persistently. 



4. Badhamia orbiculata Rex. Sporangia much de- 

 pressed, orbicular or somewhat irregular, umbilicate often 

 both above and below, gregarious, sometimes growing close 

 together and confluent, stipitate or sessile. The wall a thin 

 pellucid membrane, with a thin layer of minute granules of 

 lime, which are sometimes raised into small scales and fine 

 ridges. Stipe very short, black, sometimes reduced to merely 

 a blackish base to the sporangium. Capillitium of thick 

 tubules, forming a scanty irregular net-work, with wide 

 expansions at the angles ; the tubules filled with white 

 granules of lime. Spores subglobose, very minutely warted, 

 dark violaceous, 12-15 m i c - m diameter. 



Growing on old bark, herbaceous stems, etc. Sporangia 

 .4-. 8 mm. in diameter, sometimes by confluence larger. This 

 species seems near Badhamia verna Smfdt, but the latter 

 everywhere is described as sessile, while in the former the 

 short black stipe is nearly always distinguishable. 



5. Badhamia affinis Rost. Sporangium hemispherical, 

 or much depressed, the base flattened or umbilicate, stipitate, 



35 



