110 Clavarias of the United States and Canada 



"Plants branched, very small, not more than 1 cm. in height, 

 solitary or in groups, at first violet, becoming discoloured with age. 

 Stem reddish-yellow, pubescent below, with rooting base. 

 Branching irregular, dichotomous, the axils of the branches pat- 

 ent; branches very slender, 0.5 mm. thick, erect, apices blunt. 

 Flesh white. Internal structure filamentous, filaments 3-4[a in 

 diameter. Basidia 15-18 x 3-4[x; sterigmata 2-4. Spores hyaline, 

 smooth, globose or subglobose, 2.4-3. 5[x in diameter, 1-guttulate." 



A bit of the co-type of C. tcnuissima at Kew Herbarium is ex- 

 actly like C. exigua in the dried state and has the same spores, 

 2.5-3.6f/. thick. Clavaria conchyliata is not represented at Kew, 

 but Cotton and Wakefield consider it a synonym of C. Bizzozeri- 

 ana, and the description agrees well. In the Bresadola Herbarium 

 at Stockholm are plants from Nice (Barla, coll.) determined by 

 Bresadola as C. pulchella. They are also like C. exigua with the 

 same spores, which are subspherical, very minutely rough, 2.2-3^ 

 thick. Bresadola's notes gives the spores as "4x2.5-3; basidia 

 25 x 5-6;j.." 



In every way except color this species seems to agree perfectly 

 with C. crocea, and we have but little doubt that it is simply a color 

 form of that species. Saccardo gives the spores of C. crocea as 

 2-3 x 6-7\x, taking the figures from Britzelmayr apparently. The 

 latter, in our opinion, had an entire misconception of the species. 



Illustration: Burt. Ann. Mo. Bot. Gard. '9: pi. 8, fig. 64 (as C. exigua). 

 1922. 



New York: Floodwood. Peck. (Albany Herb., as type of C. exigua). 



Clavaria vestitipes Pk. Bull. N. Y. St. Mus. 116: 34. 1907. 

 C. bicolor Pk. Bull. N. Y. St. Mus. 54: 954. 1902. (Not C. 



bicolor Massee or C. bicolor Rafinesque). 

 C.Peckii Sacc. & D. Sacc. Syll. 17: 196. 1905. (Not C. 



Peckii Sacc. Syll. 9: 249. 1891). 

 Lachnocladium vestitipes (Pk.) Burt. Ann. Mo. Bot. Gard. 



9: 67, pi. 11, fig. 104. 1922. (In error as L. vestipes). 



Plate 84 



This species is known only from the type and the following is 

 adapted from the original description of C. bicolor : 



