Lamproderma. 103 



(Rostafinski's Synonyms.) 

 Stemonit'ls arcyrioides, Somm., Tidsk. (1827); Berk., Ann. N. 



Hist., No. 114; Cke., Hdbk., n. 1163. 

 Stemonitis chalylea, Pers., in litt. 



Stemonitis Carestiae, Ces. and Not. (1861); Erb. Or. ItaL, 888. 

 Stemonitis Morthieri, Fckl., Exs., n. 1447 (1860). 



Lamproderma physarioides, Rost. 



Gregarious or scattered ; sporangia globose, wall pale, with a 

 silvery sheen, stem elongated, tapering upwards, base expanding 

 into a small circular hypothallus, black ; columella about one- 

 third the height of the sporangium, clavate ; threads of capil- 

 litium purple-brown, springing from the clavate portion of the 

 columella, repeatedly branching in a dichotomous manner, the 

 branches anastomosing to form a network, becoming dense and 

 small meshed towards the periphery ; spores globose, brown, 

 minutely verruculose, 11 15 ju. diameter. 



Lamproderma physarioides, Rost., Mon., p. 202; figs. 55, 59, 

 62; Cke., Myx. Brit, p. 49, figs. 55, 59, 62; Sacc., Syll., vii., 

 n. 1342. 



On rotten wood, moss, &c. Britain ; Germany ; U. States. 



Distinguished by the pale, silvery sporangial wall, the clear 

 brown spores, and the clavate columella ; 2 3'5 mm. high. 



(Rostafinski's Synonym.) 



Stemonitis physarioides, A. and S., Consp., t. 11, f. 8 (1805) ; 

 B. and Br., Ann. Nat. Hist., no. 386; Cke., Hdbk., no. 1161. 



C. Spores reticulated. 

 Lamproderma Fuckelianum, Rost. 



Sporangia globose, almost sessile, slightly umbilicate belmv, 

 reddish, metallic ; stem from its shortness almost inconspicuous, 

 entering the peridium for nearly half its length as a conical 

 columella ; threads of the capillitium sparingly branched, com- 

 bined into a loose network ; spores pale violet, with thin ridges 

 combined to form a network, 8 9 /x diameter. 



