198 Clavarias of the United States and Canada 



5.5-7.4 x6.2-8.5f/., with a distinct apical mucro; basidia 2-spored 

 in the several seen (pi. 91, fig. 15). Another difference between 

 that and the present species is the unilateral hymenium, which is 

 plainly shown in our sections of the Kew plant. This is also noted 

 by Patouillard (Journ. de Bot. 3: 26). Lachnocladium cartilagi- 

 11 cum is also represented in the Farlow Herbarium by No. 388 of 

 Fungi Cubensis Wrightiani which looks just like the type 



specimens. 



Under the name L. Micheneri B. & C. at Cornell are two col- 

 lections from Ithaca which are L. semivestitum. Notes by Atkin- 

 son on one of these collections (13354) are as follows: "Trunk 

 and branches dull drab, tips whitish, branches compressed, tips 

 cristate. Basidia clavate, 4-spored. Spores 15-20 x 5 -7[/.." The 

 dried plants are about 2-3 cm. high, abruptly branched into rather 

 numerous tips which are long and slender. Color when dry buffy 

 tan, not so dark as C. apicidata nor so cartilaginous-looking, brittle 

 when dry.. One collection is on moss and one on mossy soil. 

 Clavaria brunneola B. & C. (Journ. Linn. Soc. 10: 338 [1869] 

 1868) is a Lachnocladium related to the present species, as shown 

 by the co-type in the Curtis Herbarium. It is, however, not the 

 same, as the spores are subspherical, 7.4-9.5 x ll.5-12.5f/.. 



We have studied the type of C. gigaspora Cotton (The Natur- 

 alist, p. 97. 1907; also published in Trans. Brit. Myc. Soc. 3: 33. 

 1908) from Kew and find that in all important respects except 

 the thickness of the spores it agrees with the present species, as 

 in size, color and texture in the dry state, and in microscopic de- 

 tails. The spores are large, ovate-elliptic, smooth, 6.5-8.5 x 

 13.5-18fji; basidia \1-\6\j. thick, with 4 (rarely 2) large, long, 

 curved sterigmata; hymenium about 150jx thick, packed with crys- 

 tals; threads of flesh very closely packed, about 3;/. thick (pi. 91, 

 figs. 16, 17. That Cotton's species is the same as Mcrisma tube- 

 rosum Grev. (Scott. Crypt. Fl. 3: 178, pi. 178. 1825; Thelephora 

 tubcrosa Fr. Elench. Fung., p. 167. 1828) in the sense of Bresa- 

 dola is shown by good specimens in his herbarium from Sweden 

 (R. Fries, coll.). The plants are just like the English ones (and 

 like ours) in appearance and have spores of practically the same 

 shape, which are, according to Bresadola, 6-7 x 16-24f/.. It is evi- 

 dent that our plants are the American form of the European plant 



