BADHAMIA 31 



tendency to stick together, uniformly and distinctly warted, bright 

 violet-brown, 10-12 /*. 



This species resembles B. capsulifera, but is distinguished by a more 

 strongly rugulose, less calcareous peridium and a more profuse develop- 

 ment of filamentous stipes, but especially by the character of the spores. 

 The spores of the present species while inclined, when mounted in a 

 liquid, to stay together, only occasionally occur in regular clusters, 

 nor do they show any differentiation in the episporic markings, these 

 being uniform over the entire spore. 



This is one of the finest and perhaps the most beautiful species of 

 this fine genus, the Plasmodium being very large and resulting in 

 extensive areas of fructification. It is a forest species, generally to be 

 found on trunks of fallen Populus or Tilia where the fine soft gray 

 colonies often spread for several inches along the ridges and in crevices 

 of the bark. Often on fungi and sometimes on lichens. 



Washington, Montana, Colorado, Mississippi valley and east, Bo- 

 livia; Europe, South Africa, Australia. 



7. Badhamia magna Peck 



Rept. N. Y. State Mus. 31 : 57. 1879. 

 PI. II, Figs. 24, 25, 26. 



1872. Dictydium magnum Peck, Rept. N. Y. State Museum 24 : 84. 

 1892. Badhamia varia Massee, Mon. 319, in part. 



1899. Badhamia capsulifera (Bull.) Berk, ex Macbride, N. A. Slime-Moulds 

 68, in part. 



Sporangia globose or ellipsoid, 0.7-1 mm., bluish gray, iridescent, 

 stipitate; peridium thin with slight calcareous deposits, rugulose, 

 opening irregularly, white; stipe long, flaccid, straw colored; capillitium 

 an elegant uniform net, its threads stiffened by slight deposits of lime, 

 the nodes little thickened; spores free, dusky with a shade of violet, 

 finely warted or spinulose, spherical, 11-12 /z, or oval, 14-15 X 11-12 ja. 



Closely resembling some forms of B. utricularis, from which it may 

 be distinguished by its unclustered and smoother spores and its long, 

 slender, pale stipes. B. foliicola, as here recognized, is very close, but 

 smaller and with short stems. The spores from the type collection, 

 Center, N. Y. (not Vermont, N. Y., as cited by Lister), are distinctly 

 oval, and large, 14-15 X 11-12 n, with a prominent pale umbo at one 

 end, probably indicating the area of dehiscence. Other collections re- 

 ferred here have spherical or nearly spherical spores. 



The eastern United States and Canada; Rumania. Not rare. In the 

 eastern United States it seems to occupy much the same place that 

 B. capsulifera does in Europe. 



