Craterium. 269 



scissile manner; stem thin, elongated, red, like base of spor- 

 angium ; capillitium dense, nodes very large, irregularly angular, 

 filled with yellowish granules of lime, connected at various 

 points by long, very thin internodes not containing lime, com- 

 bined at the base of the sporangium to form a short columella ; 

 spores dirty lilac, globose, smooth, 9 10 /a diameter. 



Exsicc. Ellis, North Amer. Fung., exs., n. 1400 (as Craterium 

 leucocepha luni). 



On twigs, &c. United States. 



Stem about two-thirds the length of the sporangium, 2 2'5 

 mm. high. Allied to G. leucocephalum, but .distinguished by 

 the elongated, narrowly cylindrical sporangium; the long, thin 

 internodes of the capillitium, and the smooth spores. 



Craterium aureum, Eost. (figs. 257 261). 



Sporangia elliptic-oblong, subglobose, or pyriform, stipitate, 

 wall thick, brittle, rugulose, from bright lemon-yellow to reddish- 

 orange, upper convex portion breaking away in an irregularly 

 circumscissile manner; stem usually shorter than sporangium, 

 orange-yellow, subequal, expanding at the base into a small 

 hypothallus; capillitium dense with numerous large, irregular 

 knots with yellow or white granules of lime, connected ~by elon- 

 gated, thin, empty internodes; knots aggregated in the centre 

 towards the base to form a columella ; spores globose, brownish- 

 lilac, minutely verruculose, 8 10 p diameter. 



Craterium aureum, Host, Hon., p. 124; Cooke, Brit. Myx., 

 p. 20 ; Sacc., Syll., 1239. 



Craterium mutabile, Fr., S. M., iii., p. 154. 



On leaves, bark, twigs, moss, &c. Britain (Kew, Carlisle, 

 Lyndhurst, Appin, N. B.) ; Sweden ; Germany ; Algeria ; United 

 States. 



Plasmodium clear lemon-yellow. Scattered, T5 mm. high, 

 distinguished by the rugulose, bright yellow, rigid sporangium, 

 and the long slender internodes in the capillitium, in which 

 respect the present species approaches the genus Physarum. 



