1922] 



BURT — THE N ORTH AMERICAN SPECIES OF CLAVARIA 9 



themselves, but often a few small branches may be found near 

 the base of the plant which have red tips and are therefore pre- 

 sumably of later development. It is possible that these two 

 clavarias have been confused in Europe for European; mycol- 

 ogists do not agree in their description of the spore characters of 

 the red tipped clavaria. Stevenson describes them as subhyaline, 

 12-15 u long, 6 m broad. Massee describes' them as white, 

 8 m long, 5 m broad. In our plant the spores in mass have a rusty 

 brownish or subcinnamcn color when collected on white paper 



and 



5 u broad 



"The plants are 2-4 inches tall and 1.5-3 inches broad. They 

 grow in thin woods on rather poor soil and may be found in 

 August and September. The edible qualities seem to me to be 

 similar to those of the red tipped clavaria." 



Ground in woods. Massachusetts, New York, South Carolina, 

 and Idaho. July and August. Edible. 



The fructifications of the type are now cream color, every- 

 where except the tips of the ultimate branches which are ocher 

 red; spores only very slightly colored or nearly hyaline as seen 

 with the microscope, becoming minutely rough, 9-11X3-4 u, not 

 striate. Peck's statement concerning the spores of C. botrytis 

 nresents the confusion in the characters of European species — 



frequently due to errors by Massee, as in this instance — which 

 is a serious obstacle to progress in American mycology. Con- 

 structive work such as that by Cotton and Wakefield prepares the 

 way for advances in other countries. 



Specimens examined: 

 Exsiccati: Ell. & Ev., N. Am. Fungi, 2022, under the name 



C. botrytis; Ravenel, Fungi Car. 2: 41, under the name 

 C. botrytis; Shear, N. Y. Fungi, 57, under the name C. 



botrytis. 



Andover, J. Blake, comm. by P. L. Ricker 



New York : Alcove, C. L. Shear, in Shear, N. Y. Fungi, 57 ; Porl 



Jefferson, C. H. Peck, type, in N. Y. State Mus. Herb. 

 South Carolina: Aiken, H. W. Ravenel, in Ell. & Ev., N. Am 



Car 



Mo. Bot. Gard. Herb 



57356). 



3. C. conjuncta Peck, N. Y. State Mus. Bui. 105 : 16, 42-43. 



pi. 102. f. 1-3. 1906; Sacc. Syll. Fung. 21: 426. 1913. 



Plate 1, fig. 3. 



