148 THE MYXOMYCETES 



leaves in orchards and forests and even spreads boldly over the foliage 

 and stems of living plants. 



Var. globosa Lister, with globose or subglobose sporangia, is con- 

 nected with the typical form by continuous series. Apparently much 

 less common and usually occurring with it. Distinguished from 

 D. bulbillosa by the spores. 



Cosmopolitan. 



2. Diachea bulbillosa {Berk. & Br.) List. 



Jour. Bot. 36 : 165. 1898. 

 PI. X, Fig. 235. 



1873. Didymium bulbillosum Berk. & Br., Jour. Linn. Soc. 14 : 84. 

 1909. Diachczella bulbillosa Hohnel, Sitzungsb. Akad. Wiss. Wien, Math. -Nat. 

 Kl. (I) 118 :437. 



Sporangia gregarious, globose, stipitate, small, smooth, 0.3-0.4 mm. 

 in diameter, and 1.5 mm. or less tall; stipe conical, white or sometimes 

 brown; capillitium of purple-brown threads united to form a lax net; 

 spores violet-gray, rather sparsely and irregularly warted, the warts 

 dark and varying in size, 7-11 fx. 



Said to be common in southern Asia. Specimens from Ontario, col- 

 lected by Miss Currie and reported by her in the "Slime-molds of 

 Ontario," show spores rather variable in size, mostly between 8.1 and 

 9.6 ju, and averaging about 9 ju, not 7.8 fx as she states. A collection of 

 Morgan's from Ohio, labelled by him Diachcea longipes Morgan, with 

 dark, sparsely warted spores, 7.5-8 n, is also this species. 



Ontario, Ohio; southern Asia. 



3. Diachea splendens Peck 



Rept. N. Y. State Mus. 30 : 50. 1878. 

 PL X, Figs. 229, 230. 



1925. Diachea bulbillosa (Berk. & Br.) List. var. splendens G. List., Mycetozoa 

 ed. 3. 103. 



Sporangia gregarious, metallic blue with brilliant iridescence, glo- 

 bose, stipitate, 0.3-0.6 mm. in diameter, a millimeter or more tall; 

 stalk conical, about equal to the diameter of the sporangium, tapering 

 upward; hypothallus white, venulose, a network supporting the snowy 

 stipes; columella white, cylindric, obtuse, passing the center; capil- 

 litium lax, of slender brown threads anastomosing to form a network; 

 spores in mass black, by transmitted light pallid, with very coarse, 

 dark warts and ridges forming an incomplete reticulation on the sur- 

 face, 7-10 /x. 



This is perhaps the most showy species of the list. The globose, 



