Crate num. 267 



On mosses, decaying lichens, &c. Britain (Lyndhurst, Haw- 

 thornden, Edinboro') ; Sweden ; Germany. 



From 1*5 2 mm. high, sporangia and stem varying from 

 orange to deep blood-red, stem elongated, slender. 



B. Apex of sporangium not differentiated into a distinct lid. 

 Craterium leucocephalum, Rost. (figs. 298 301). 



Sporangia stipitate, conico-cylindrical, pyriform or subglobose, 

 apex rounded and eventually breaking away in a circumscissile 

 manner, upper portion of sporangium whitish and rough with 

 minute, innate particles of lime which eventually fall away, 

 leaving minute pits in the wall, basal portion of sporangium 

 dark reddish-brown, much wrinkled; capillitium dense, knots 

 large, irregular, numerous, usually aggregated in the centre to 

 form a columella, granules of lime colourless, yellow or brownish ; 

 spores globose, dull violet or brownish, minutely warted, the 

 wart often with a tendency to form anastomosing lines, 8 11 p 

 diameter. 



Craterium leucocephalum, Rost., Mon., p. 123, f. 98, 100 ; 

 Cooke, Myx. Brit., p. 19, f. 98, 100; Kaunk., Myx. Dan., p. 80, 

 t. 4, f. 12; Sacc., Syll., 1238. 



Exsicc. Syd., Myc. March., 1500; Fuckel, Fung. Rhen., 

 1452; Roum., Fung. Gall., 1679; Rab.-Winter, Fung. Eur., 

 2674. 



On leaves, twigs, bark, &c. Britain (Jedburgh, Chiselhurst, 

 Epping, Gloucester, Wanstead Park, Scarboro', Carlisle, Appin, 

 N. B.) ; Germany ; France ; Italy ; Denmark ; United States ; 

 Brazil. 



Plasmodium yellow. Gregarious or scattered, 1*5 2 mm. 

 high, variable in form and length of stem, the upper convex 

 portion of the sporangium breaks away in a circumscissile 

 manner, there is not a differentiated lid as in C. vulgare. The 

 present species is best characterized by the pale upper portion 

 of the sporangium being incrusted with minute particles of 

 white or yellowish lirne, and also by the presence of numerous 

 circular discs sunk in the substance of the wall; these discs vary 



