100 A Monograph of the Mi/xogastres. 



reddish metallic slieen; stem black, shining, rigid, subulate, 

 entering the peridium as an obovate columella, and about half 

 its height; capillitium of dusky threads springing" from apex 

 of columella, Iranches for some distance simple, then lecoming 

 very much branched, laterally connected, and forming a dense net 

 at the periphery, spores dingy- violet, minutely spinulose, 10 — 11 fj. 

 diameter. 



Lamp)roder7iia Schim2Jeri, Rest., Mon., p. 203, fig. 63 ; Sacc, 

 Syll., n. 1343; Cke., Myx. Brit., fig. 63. 



Germany. 



Lamproderma Sauteri, Rost. 



Similar to L. violaccum, but more rigid in every part ; 

 sporangia spherical, slightly flattened below, 1 mm. broad, 

 shining with various metallic tints ; stem black, stibulate, 

 springing from a well-developed hypothallus; columella cylin- 

 drical, truncate ; capillitium threads branched from the base and 

 forming a dense network, pale when the spores are blown away ; 

 spores dingy-violet, densely covered with sjnnules, 12 — 15 /x 

 diameter. 



Lamproderma Sauteri, Rest., Mon., p. 205 ; Sacc, Syll., vii., 1, 

 no. 1348. 



Tyrol. 



Entire specimen 2 mm. high. 



Lamproderma minutum, Rost. 



Sporangia spherical, f mm. diameter, slightly metallic ; stem 

 black, slender, equal ; columella cylindrical, thin, truncate ; 

 threads of capillitium colourless, rarely fasciculately branched, 

 fascicles blending together; spores violet, delicately verruculose, 

 66 /x diameter. 



Lamproderma minutmn, Rost., Mon., Append., p. 20 ; Sacc, 

 Syll., vii., 1, n. 1351. 



France. 



Lamproderma columbinum, Rost. 

 Sporangia stipitate, sub-ovate or globose, blackish, reflecting 



