PItymriun. 289 



Edinburgh); France; Germany; Italy; Hungary; Denmark; 

 S. Africa ; Australia. 



About 1*5 mm. high ; stem, when perfect, clingy brown, slightly 

 attenuated upwards ; the sessile and irregular forms are dis- 

 tinguished from Physarmn cinereum by the dense, irregular 

 capillitium having most of the angles flattened and rarely 

 containing lime. 



Va7\ violasccns, Rost. Sporangium subglobose or compressed, 

 wall thin, iridescent, with violet or reddish tints, with very few 

 small, innate patches of lime, or these may be entirely absent; 

 stem short or equal to sporangium, stout, expanding at the 

 base into a small hypothallus, yellowish, darker below, strongly 

 wrinkled longitudinally ; capillitium and spores as in the type. 



Physarum Icueophacum, 13. violascens, Rost., Mon., p. 113; 

 Cke., Myx. Brit., p. 15. 



On moss. Epping Forest. 



(Rostafinski's Synonyms.) 



S2'>hacrocar2nis alhus, Bull., p. 136, var. 3, 4 (1791). 



Trichia filamcntosa, Trent, p. 227 (1797). 



Physarum eonjiuens. Link, Diss., ii., 42 (1809). 



Physarum connexum, Link, Diss., ii., 42 (1809). 



Pliysarum hy'pnorum, Link, Diss., ii., 42 (1809). 



Physarum alho'punctatum. Link, Herb. 



Physarum clavus, Ehr., Herb. 



Physarum conglohaticm, Ditm., t. 40 (1817). . 



Physarmn leucojjhaeum, Fr., Sym. Gast., p. 24 ; Syst. Myc, 



iii., 132 (1818); Cooke, Fung. Brit., ii., n. 519. 

 Didymium mclanoims, fi. clavus, Wallr., non Fries (1833). 

 Didymium tcrrestre, Fr,, in Weinm. (1836). 

 Physarum alhipcs, De Bary, not Link (1859). 

 Physarum striatum., Fckl., Sym. Myc, 342 (1869). 

 Didymium licmisphcricum, Fckl., Sym. Myc, 341 (1869). 



Physarum granulatum, Balf. fil. (figs. 68 — 70). 



Sporangia stipitate, globose, sometimes slightly flattened 

 below, grey, with small innate granules of lime, and having in 



