74 A Monograpli of the Myxogastres. 



Trichia mida, With. Arr., iv., 477 (1792). 

 Stemonitis fascicnlata, Pers., Syn., 187 (1801). 

 Stcmonitis tyj^hoides, Auct. 



Stemonitis maxima, Sz. 



Sporangia crowded, stipitate, springing from a well-developed 

 hypothallus; sporangia cylindrical; wall blackish, reflecting 

 metallic tints, evanescent; columella reaching almost to the 

 apex of the sporangium; capillitium dense, branches often 

 arcuate, sometimes more or less irregularly dilated, especially 

 at the nodes, peripheral meshes nutch larger than the diameter 

 of the spores; mass of spores hlacJdsh brown; spores globose, 

 very minutely verrucnlose, 5 — 10 /a diameter; stem filiform, 

 black, shining, shorter than the sporangium. 



Stemonitis maxima, Schweinitz, Syn. Fung. Amer., n. 2349 

 (specimen from Schweinitz in Herb. Berk., Kew, n. 10835). 



Stemonitis splc7ulens, E,ost., Mon., p. 195 ; Sacc, Syll., vii. 1, 

 n. 1364. (Authentic specimen named by Rostafinski.) 



On wood, &c. Russia ; Finland ; France ; Ceylon ; Mauritius ; 

 Cuba ; United States ; Australia ; Cape of Good Hope. 



A fine large species, distinguished amongst the dark-spored 

 species by the large peripheral meshes of the capillitium. 

 Lumps of organic matter are sometimes met with in consider- 

 able quantities on the threads of the capillitium ; 1'5 — 3 cm. 

 high. 



Stemonitis typhina, Mass. 



Gregarious, but not usually crowded, springing from a delicate 

 hypothallus ; sporangia cylindrical, ohtuse a.t loth ends, wall 

 very thin, brownish, disappearing; columella reaching to the 

 apex, capillitium dense, threads originating at numerous points 

 from the columella, dingy brown, copiously branched and form- 

 ing a dense, irregular network, thickest at the point of origin 

 and tapering towards the perijDhery where they are very slender, 

 and form a network of irregular pattern, with the meshes usually 

 not larger than the diameter of the sjmres ; stem erect, slender, 

 cylindrical, usually rather shorter than the sporangium, blackish ; 



