Lamiiroderma. 103 



(Rostafinski's Synonyms.) 

 Stcmonitis arcyrioides, Somm., Tidsk. (1827); Berk., Ann. N 



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

 Stemonitis chalyhea, Pers., in litt. 



Stew.onitis Carestiae, Ces. and Not. (1861); Erb. Cr. Ital. 888. 

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



Lamproderma physarioides, Rost. 



Gregarious or scattered ; sporangia globose, wall ^m/c, 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 Ircmching 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. 



LamprodeTma physarioides, Rost., Mon., p. 202; ficrs. 5.5, .59, 

 62; Cke., Myx. Brit., p. 49, figs. 55, 59, 62; Sac'c, "syll 'vii.' 

 n. 1842. 



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 p)hysarioidcs, A. and S., Consp., t. 11, f. 8 (1805); 

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



C Sjwres rctieulated. 

 Lamproderma Fuckelianum, Rost. 

 Sporangia globose, almost sessile, slightly umbilieate below, 

 reddish, metallic ; stem from its shortness almost incons2)icuous, 

 entering the peridium for nearly half its length as a conical 

 columella ; threads of the capillitium sparingly branched, com- 

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

 combined to foim a networh, 8 — 9 /x diameter. 



