Clavarias of the United States and Canada 35 



punctate internally, subelliptic to pip-shaped, 2.8-3.4 x 4.8-6.2(jt.. 

 From Cotton's description his C. Crosslandii seems to be this 

 species, but we have not been able to see the type (Trans. Brit. 

 Myc. Soc. 6: 187. 1919). From the description C. affinis Pat. and 

 Doassans may be this or perhaps small isolated specimens of C. 

 vermiculata (Tab. Fung., p. 205, fig. 470. 1886). The original 

 description of C. Macouni follows: 



"Clubs single or clustered, 6 to 10 lines high, obtuse or sub- 

 acute, dingy greenish yellow or pale cinereous; spores minute, 

 elliptical, 5y. long, 3[jl broad." 



Illustration: Burt. Ann. Mo. Bot. Gard. 9 : pi. 8, fig. 69. 1922. 

 Canada: Among mosses under cedar trees. Macoun. (Albany Herb., type). 



Clavaria vernalis Schw. Schr. Nat. Ges. Leipzig 1: 112. 1822. 

 ?C. pahidicola Libert. PI. Crypt. Arduennae, No. 322. 1837. 

 C. clavata Pk. Bull. Buf . Soc. Nat. Sci. 1 : 62. 1873. 



Plates 82 and 92 



Plants single, gregarious in extensive colonies, simple (one 

 plant seen with four little prongs), 7-12 mm. high; clubs clavate 

 to nearly cylindric, the usually thickened tip rounded or abruptly 

 pointed, 1-2 mm. thick; tapering downward to the short (2-2.5 

 mm. long), poorly defined, terete and glabrous stalk, which is 

 slightly incrassated at the base; color of club watery ochraceous 

 to dull orange above, fading downward to the whitish and sub- 

 translucent stalk. Flesh of the same color as the surface, watery, 

 pliable and toughish, cracking but not snapping when bent double ; 

 solid ; taste slightly moldy ; odor none. 



Spores (of No. 6071) white, smooth, narrowly elliptic and 

 somewhat curved, 2-3 x 8-1 lfx. Basidia 4-spored, clavate, 3.7-4.8 x 

 18-25[a. Hymenium without cystidia or other peculiar cells, ab- 

 sent over the central region of the tip which in some individuals 

 may be distinguished even when fresh by a little groove which 

 surrounds it. Threads of flesh about 2.3-4p- thick, clamp con- 

 nections present. 



Our plants are like C. vernalis in all essentials, as habitat, sea- 

 son, gregarious but scattered habit, size and color, sterile tip, 

 and shape of spores. It is true that the spores of No. 6071 



