46 Clavarias of the United States and Canada 



in cross section like parenchymatous cells in shape. After drying 

 the plant will revive its shape if dropped in water (thus differing 

 from C. fumosa). 



Spores (of No. 2751) variable, even in the same plant, white, 

 smooth, ovate-pip-shaped, 2.6-3.6 x 4.4-6[x. Basidia (of C. & B. 

 No. 130) 5.9-6.6fx thick; hymenium 40[x thick; hyphae about 7.4|a 

 thick, parallel, closely packed, no clamp connections. 



Persoon has described two plants as C. alba, both in Mycologia 

 Europaea. The first (p. 161) is the large, branched plant, con- 

 sidered the same as C. coralloidcs by Fries and Saccardo. The 

 other (p. 175) is represented in Persoon's herbarium by six single 

 plants or cespitose clusters. They are small, slender and quite 

 simple and resemble the frag His form of C. vermiculata. We find 

 that the spores also agree with this species (smooth, oval, 

 3.5-3.8 x 4-5 [a ), and we are therefore considering it the same. 



The types of C. eburnea in Persoon's herbarium look like C. 

 fragilis and have the same spores, oval, smooth, 3.5 x 4.5-6^. 

 There is a sheet of C. vermiculata in Persoon's herbarium. The 

 plants resemble ours closely. Clavaria canaliculata Fr. may be a 

 form of this species, but Quelet's illustration (Champ, du Jura et 

 des Vosges, pi. 21, fig. 1) does not look like it. 



Cotton is in our opinion quite right in reducing C. fragilis to 

 C. vermiculata (C. vermicularis Fr.) (Trans. Brit. Myc. Soc. 

 3 : 32. 1907). He refers to the fact that Schroeter had combined 

 the two in 1885 (Krypt. Flora Schlesien, p. 445), though he 

 adopted the name C. fragilis instead of the earlier one. After 

 studying many collections from different states both fresh and 

 dried, we can find no satisfactory distinctions. Single or sparsely 

 grouped plants are often found among dense clumps of the typical 

 vermiculata form and this form also shows often the yellowish tip 

 in both the densely crowded and single plants. The spores while 

 variable in length are essentially similar in all forms and their 

 length cannot be correlated with other qualities of the plant. 

 Clavaria corynoides is represented in Albany by the type collection. 

 There are several slender little clubs that look just like small, 

 scattered plants of the fragilis form. Spores few but those found 

 are similar, nearly pip-shaped, 3 x 5-6[a. This may be C. helve ola, 

 but the white stem would seem to agree better with C. vermiculata. 



