Lamproderma. 95 



bined into a network; spores violet, globose, smooth, 9 12 /* 

 diameter. 



Lamproderma violacca, Host., Mon., p. 204, fig. 64; Cke., 

 Brit. Myx., p. 50, f. 64 ; Sacc., Syll., vii., no. 1394. 



On wood, moss, &c. Britain (Shrewsbury, Castle Howard, 

 Yorks); United States. 



A very distinct and beautiful species, characterized by having 

 the sporangium flattened or umbilicate below, and the almost 

 colourless capillitium springing from every part of the columella. 

 From 2 3 mm. high. 



(Rostafinski's Synonym.) 



Stemonitis violacea, Fr. S. M., iii., 162 (1829); B. and Br., 

 Ann. Nat. Hist., 387; Cke., Hdbk., n. 1162. 



i 



Lamproderma irideum, Mass. (figs. 149 151). 



Scattered ; sporangia globose, wall thin, with steel-blue, green, 

 or coppery metallic tints; stem elongated, blackish-brown, 

 tapering upwards, expanded at the base into a small, circular 

 hypothallus; columella cylindrical, about one-third the height 

 of the sporangium, giving origin at the apex to several thick, 

 ascending branches, which remain simple throughout the greater 

 portion of their length, towards the tips repeatedly bifurcating, 

 rarely anastomosing laterally, violet-brown, not paler at the tips ; 

 spores globose, violet-brown, smooth, 11 15 p diameter. 



Lamproderma arcyrioides, Var. iridea, Cke., Myx. Brit., p. 50, 

 figs. 246249 ; Sacc., Syll., vii., n. 1353. 



Exsicc. Cke., Fung. Brit., Ser. I., 523 (as Stemonitis arcy- 

 rioides)', Cke., Fun:*. Brit.. Ser. II., 523 (as Lamproderma 

 arcyrioides). 



(Type in Herb., Kew.) 



On dead leaves, moss, &c. Britain (Hampstead). 



Distinguished by the scattered habit, smooth spores, and in 

 the primary branches of the capillitium remaining unbranched 

 except at the tips. 



Lamproderma suboeneum, Mass. 

 Scattered ; sporangia globose, small, wall thin, broivn, with a 



