O pit lot her a. 135 



Physarum vermicnlarc, Sz., Syn. Fung. Amer., n. 229G. 

 (Specimen from Schweinitz in Herb. Berk., Kew.) 



Perichaena vermicularis, Rost., Mon, App., p. 84; Sacc, Syll., 

 vii., 1, n. 1437. 



Ophioiheca umhrina, B, and C, Grev., vol. ii., p. 68 (1873). 

 (Type in Herb. Berk., Kew.) (Not Perichaena variahilis, Rost., 

 Mon., p. 205 ; Sacc, Syll, n. 1440.) 



Perichaena artocreas, B. and Rav., Grev., v. ii., p. 68 (1873). 

 (Type in Herb, Berk., Kew). 



Perichaena corticalis, Rost., Mon., p. 293 (in part) ; Sacc, Syll, 

 n. 1435 (in part) ; Cke., Myx. Brit., p. 73 (in part). 



Perichaena Friesiana, Rost., Mon., 296 ; Sacc, Syll., n. 1441. 



On rotten wood and bark. United States, 



In Schweinitz's specimen there is a clear transition shown 

 from normal perithecia to the venulose, reticulate plasmodiocarp. 

 In the non-venulose form the margin is uniformly raised all 

 round. The threads covered with short raised bands, looking 

 like warts under a low power, and the spores densely covered 

 with depressed warts are very characteristic, 



Ophiotheca anomala, Mass. 



Sporangia scattered or gregarious, sessile, sub-sphaeroid, dingy- 

 ochraceous, rather shining, about 1*5 mm. diameter ; threads of 

 the capillitium 4 — 6 /x thick, cylindrical, ends numerous, truncate, 

 often terminated hy clavately swollen tips, icith crowded raised 

 hands arranged as circles; spores globose, smooth, dingy-ochra- 

 ceous, under tlie microscope very pale tinge of yellow, 6 — 7 /x 

 diameter. 



Cornuvia anomala, Karst., Myc Fenn., 4, p. 131 ; Sacc, Syll., 

 vii., 1, 1455. 



Trichia anomala, Karst., Not. Siillsk. pro Faun, et Flor. Fenn., 

 ix. (1868), p. 354. 



Ophiotheca serpula, Mass. 



Plasmodium venulose, yellow; mass of spores and ca])initium 

 golden-yellow; capillitium threads cylindrical, 3'3 ju Ihid; ■iriih 



