1922] 



BURT — THE NORTH AMERICAN SPECIES OF CLAVARIA 49 



74. C. tenuis Schweinitz, Am. Phil. Soc. Trans. N. S. 4: 182. 

 1832; Sacc. Syll. Fung. 6: 730. 1888. Plate 9, fig. 75. 



Type: in Herb. Schweinitz — no specimen in Curtis Herb. 



"C. sparsim ex ligno proveniens, fere simplex, affinis C. 

 mucidae, et tantum rarius apice furcato. Ceterum tenuis, 14 

 unciali longitudine, pallida aut alba, gracilis. 



"In muscis nobis ex New York missis." 



Clubs simple, solitary, only rarely forked at the apex, white 

 or pallid, slender, tenuous, 6 mm. high. 



Three clubs are now to be found ; these grow directly from the 

 moss — not from wood. One of these clubs has been brought 

 out for the photographic illustration by slipping about the fructi- 

 fication a small square of white paper so as to cover the moss 

 and have the fructification project natural size against the white 

 background. Each fructification in its present dried condition 

 is 2 mm. long and pale pinkish buff; hyphae 3-3 V-. m in diam- 

 eter, even, long-celled, not nodose-septate; spores hyaline, even, 

 subglobose, S-Sy^X^ [i, none seen attached to basidia; basidia 

 not made out. 



This species is very distinct from the figure of Typhula mus- 

 cicola in Persoon, Obs. Myc. 2. pi. 3. j. 2, a species much larger 

 and often with a tubercule at the base. Eocronartium, parasitic 

 on mosses about Ithaca, New York, should be kept in mind in 

 connection with C. tenuis. Eocronartium has transversely septate 



basidia. 



75. C. misella Berk. & Curtis, Linn. Soc. Bot. Jour. 10 : 339. 

 1868; Sacc. Syll. Fung. 6: 731. 1888. Plate 9, fig. 76. 



Type: in Curtis Herb, and probably in Kew Herb. 

 "Alba, simplex, clavata, obtusa; stipite tenui, basi spongiosa 



dilatata. 



"Attached to Mosses. Not exceeding y 2 inch in length; opake 

 when dry. Nearly allied to C. pauper cula, B. & C, a species from 

 Venezuela, which also grows on moss, but is pellucid and rugose 

 when dry." [Cuba. C. Wright, 222]. 



Of the several fructifications on the moss plant two were 

 made more conspicuous for the photograph by slipping over the 

 moss small rectangles of white paper so as to afford a white back- 

 ground for the clubs. The clubs are now between cartridge-buff 

 and pinkish buff, with the stem attached in each case to a cluster 

 of 2 or 3 moss leaves, tapering upward slightly to the hymenial 



