212 ROCHESTER ACADEMY OF SCIENCE. [Mar. 24, 



149. Cribraria purpurea Schrad. Macbride, loc. cit. , p. 

 169. Peck, X. \'. Myx., 31 Rep., p. 56. Sajcc SylL, vol. VII., p. 

 4Xi. On rotten log-, Lyndonville, May, 1887. Easily recognized by 

 its purple color. 



150. Cribraria vulgaris Schrad. Peck, 32 Rep., page 38. 

 Sacc. SylL, 1. c, p. 414. On rotten wood, Lyndonville, June, 1888. 



DiCTVDiUM (Schrad.) Rost. 

 i,si. Dictydium cancellatum (Batsch) Macbride. Macbr. , 

 loc. cit., p. 172, plate I., figs. 6, 6a. Dictydium ccrniiiim Pers. , in 

 Peck. N. Y. Myx., 31st Rep., p. 56. D. cernuum (Pers.) Nees in 

 Sacc. Syll., vol. YII., p. 410. 



Order IV. LYCOGALACE^. 



LvcoGALA Micheli. 



152. Lycogala epidendrum (Buxb.) P'ries. Macbride, loc. 

 cit., page 175. Peck, N. Y. Myx., 31st Rep., p. 57. Sacc. Syll., 

 1. c. , p. 435. Common on stumps in woods. Often seen in its early 

 state on account of the bright scarlet color of the immature 

 Plasmodium. 



Order V. TRICHIACEi^:. 



B. PERICH^NEiE. 

 Perich.'ENA Fries. 



153. Perichaena corticalis (Batsch) Rost. Macbr., 1. c, p. 

 185, plate 11., fig. I. Peck, N. Y. Myx., 31 Rep., p. 57. Sacc. 

 Syll., 1. c. , p. 420. On bark of fire wood in piles, Lyndonville, 1886. 



C. ARCYRIE^. 



Arcyria (Hill) Pers. 



154. Arcyria [nutans (Bull.) Grev. Macbr., 1. c, p. 191, 

 plate II., fig. 6. Peck, 1. c. , page 57. Sacc. Syll, 1. c. , p. 429. On 

 rotting fence, Lynflon\illc, June, 1889. 



155. Arcyria denudata (Linn, j Sheldon. .Macbride, 1. c. , 

 p. 195, plate II., figs. 5, 5a. Arcyria punicea Pers., in Peck, 1. c. , 

 page 57- Sacc. Syll., 1. c. , page 426. 



E. TRICHlEiE. 

 Hemitrichia Rost. 



156. Hemitrichia vesparium (Batsch) Macbride. Macbride, 

 1. c. , p. 203. This is the well known Hcmiarcyria rubiformis (Pers.) 



