Clavarias of the United States and Canada 49 



Clavaria citriceps Atk. Ann. Myc. 6: 56. 1908. 



Plates 1 and 82 



Plants gregarious, single or cespitose in twos or threes, 3-4 

 cm. high, slender; club 1.5-2 mm. thick, tapering below into a 

 more slender stalk about 1 cm. long and not sharply distinct ; stalk 

 subtranslucent or opaque. Club opaque, bluntly rounded at tip 

 when just grown, but immediately beginning to wither at tip and 

 becoming acute. Color milk-white, with a pale yellow tint toward 

 the tip when young, the withered tip soon a deeper watery yellow. 

 The withering and accompanying change of color proceeding 

 downward until the entire club is involved. Texture quite brittle 

 when very fresh, soon much less brittle in incipient withering; 

 solid or partly hollow. Taste and odor none. 



Spores (of No. 3428) minute, smooth, subspherical, 3-3.5 x 

 4-4.5u, smaller and more spherical than in C. vermiculata. Basidia 

 4-spored, 3[/. thick. 



The dried plants of the type at Ithaca are similar in appear- 

 ance to ours. They are simple, moderately stout, single or 2-4 ces- 

 pitose. The spores are very few, but those found are the same. 

 They are smaller than the spores of C. helveola and average shorter 

 than those of C. vermiculata; the shape is, moreover, distinctly 

 more spherical than in either of the others. The species is very 

 near C. vermiculata and may be only a variety of it. The latter 

 is often yellowish at the tip, but the present species is yellowish over 

 a larger extent of the club, and the spores are differently shaped 

 and average smaller. For a comparison with C. luteo-ochracea, 

 see that species. From the description C. Michelii Rea (Trans. 

 Brit. Myc. Soc. 2 : 39. 1903) may not be different from the present 

 species. 



Atkinson's description of C. citriceps follows : 



"Plants subclavate, 1.5 cm. high, 2-3 mm. stout, citron yellow, 

 white below, deeper yellow when dry. Spores oval, white, smooth, 

 with an oil drop, 4-5 x 3[x." 



Illustration: Burt. Ann. Mo. Bot. Gard. 9 : pi. 10, fig. 90. 1922. 



New York: Ithaca. On ground in woods. C. O. Smith. (Cornell Herb., 

 No. 13461). 



Connecticut: Redding. Coker, No. 3428. In moss under maple, August 

 23, 1919. 



