34 Clavarias of the United States and Canada 



North Carolina: Chapel Hill. No. 2674. Low damp woods by branch, 

 July 14, 1917. Spores 2.5-3.4x3.7-4.5^. 



New York: New York Botanical Garden. Coker, No. 16a. On earth in 

 a tub, in the main conservatory range, September 21, 1918. (U. N. C. 

 Herb.). Associated with C. acuta which was easily different in clearer, 

 white, translucent stem, simple clubs (in this case), much greater brittle- 

 ness, lack of odor, and different spores. 

 Vaughns. Burnham, No. 39. On earth in woods. (U. N. C. Herb.). 

 Spores oblong-elliptic, smooth, hyaline, 2.2 x 3.5/x. The plants are ex- 

 actly like No. 16a in the dry state except a little taller, and the spores 

 are the same. 



Clavaria bif ormis Atk. Ann. Myc. 6 : 56. 1908. 



Plate 91 



The type of C. bif ormis at Ithaca shows little, single, spar- 

 ingly branched or simple plants with smooth, subspherical spores 

 about 2.2-3.5 x 3.5-V The co-type (No. 10699, Blowing Rock, N. 

 C.) is the same thing, with spores 2.8-3.6 x 3.5-4[x. The species 

 is probably a form of C. luteo-ochracea, but we are retaining it at 

 present. 



Atkinson's description follows : 



"Plants dull white to sordid yellow, in age tips usually darker, 

 cylindrical, base only slightly more slender, 1-4 cm. high, 0.5-1.5 

 mm. stout, usually simple, or one or two times dichotomously 

 branched. Basidia 20-25 x 4-5[x, 4-spored. Spores oboval, white, 

 smooth, granular or with an oil drop, 3-4 x 2.5-3|/.." 



Illustration : Burt. Ann. Mo. Bot. Card. 9 : pi. 9, fig. 79. 1922. 



North Carolina: Blowing Rock. Atkinson, No. 10699. (Cornell Herb, 

 and U. N. C. Herb.). 



New York: Ithaca. On leaf mold in woods, August 8, 1902. Atkinson. 

 (Cornell Herb., No. 13432. Type). 



Clavaria Macouni Pk. Rept. N. Y. St. Mus. 47: 150 (24 of 



Bot. ed.). 1894. 



Plates 91 and 92 



This seems to be a good species. In the dry state the type 

 plants are very small, simple, dull brown, flattened and channelled 

 by collapse. Microscopic examination shows the hymenium about 

 40[x thick; basidia 4-spored, 5-5.5^ thick; spores smooth, often 



