

TRICHIA 293 



Var. munda Lister (Jour. Bot. 35 : 216, 1897) is distinguished from 

 the typical form by its smaller size and smooth elaters, with regular, 

 close spiral bands. Meylan adds that its color is constantly fawn or 

 grayish, that it arises from a white instead of a blackish purple Plas- 

 modium and that the elaters are of uniform breadth instead of taper- 

 ing throughout, except for their long tapering ends, which usually 

 arise from an inflation. He recognizes it as a distinct species under the 

 name T. munda (Bull. Soc. Vaud. Sc. Nat. 56 : 327, 1927). 



Var. flavicoma Lister (Mycetozoa 172, 1894) is marked by its small 

 size and solitary purplish brown sporangia. Meylan (1. c.) would 

 make it a variety of his T. munda. 



Var. cerifera G. List. (Jour. Bot. 53 : 211, 1915) bears particles of 

 wax on the sporangia; var. aurispora Meylan (1. c.) is marked by its 

 golden yellow spore-mass. 



Not common, but very widely distributed. Maine, Ontario, Wash- 

 ington, south to Pennsylvania, Ohio and Colorado. Recorded from 

 all continents. 



19. Trichia floriformis (Sckw.) G. List. 



Jour. Bot. 57 : 110. 1919. 

 PI. XX, Fig. 523. 



1832. Craterium florijorme Schw., Trans. Am. Phil. Soc. II. 4 : 258. 

 1846. Trichia lateritia Lev., Ann. Sc. Nat. Bot. III. 5 : 167. 

 1875. Trichia decaisneana de B., in Rost, Mon. 250. 



1911. Trichia botrytis Pers. var. lateritia (Lev.) Lister, Mycetozoa ed. 2. 

 217. 



Sporangia stalked or rarely nearly sessile, about 1 mm. in diameter, 

 free and gregarious or adhering in clusters of 2-6 or rarely more, 

 obovate or globose-turbinate, deep purplish brown, becoming dull 

 black; stipes even, concolorous, free from refuse matter, when united 

 closely adherent or combined; hypothallus small or lacking; capillitial 

 mass bright brick-red; elaters fusiform, long, ending in long tapering 

 points and encircled by usually four spiral bands; spores brick-red in 

 mass, orange-brown by transmitted light, almost smooth, 10-12 \x. 

 Plasmodium purple-brown. 



Superficially resembling Hemitrichia vesparium but quite different 

 in its internal structure. Differing from Trichia botrytis in its darker 

 sporangium wall, brighter, translucent stalk and in its method of 

 dehiscence. This is irregular in T. botrytis, usually petaloid in T. flori- 

 formis, leaving a deep cup which induced Schweinitz to place it among 

 the crateriums. 



Widely distributed but not common in North America, where it is 



