Cratei'ium. 271 



brown ; capillitium dense, white, threads aggregated in the centre 

 to form a brownish columella; spores violet with usually a 

 brown tinge, globose, covered with irregular simple or branched 

 ridges, which here and there combine to form an imperfect network, 

 10 14 \i diameter. 



Badhamia dictyospora, Host., Mon. App., p. 4 ; Cke., Myx. 

 Brit., p. 82. 



On wood, moss, &c. Britain (Carlisle) ; United States. 



Gregarious, 2 3 mm. high ; indistinguishable from C. ru- 

 biginosum, except by the nature of the markings on the epispore. 

 May possibly prove to be a form of the last-named species. 



(Rostafinski's Synonyms.) 



Physarum canum, Klotzsch., Hb. Hook. 

 Physarum rubiginosum, Berk., Eng. Fl., v., p. 315. 



Craterium lilacinum, Mass. (figs. 307, 308). 



Sessile, aggregated, globose, smooth, reddish-lilac, capillitium 

 threads variable in diameter, clustered together in the centre and 

 forming an irregular columella ; spores purple, sometimes tinged 

 with brown, globose, epispore furnished with short, irregular 

 ridges, which sometimes combine to form an irregular network, 

 12 16 ju. diameter. 



Badhamia lilacina, Host, Mon., p. 145, figs. 108, 109; Cke., 

 Myx. Brit., p. 27, figs. 108, 109 ; Sacc., Syll., vii., n. 1156. 



Exsicc. Syd., Myc. March., 1297 (as Leocarpus vernicosus). 



On rotten wood, bark, twigs, &c. Britain (Carlisle); Ger- 

 many ; United States. 



Usually crowded, sporangia seated on a broad base, wall 

 generally smooth, but sometimes rather rough. The present 

 species may eventually prove to be a sessile form of C. dictyo- 

 spermum. 



(Rostafinski's Synonym.) 

 Physarum lilacinum, Fr., I.e., iii., p. 141 (1829). 



