84 Clavarias of the United States and Canada 



with this Burt agrees), but some are larger, and after studying 

 fresh plants both here and in the north we see no reason to con- 

 sider the southern form distinct. Peck's Cratcrellns corrugis has 

 spores no longer than C. unicolor and a collection from Redding, 

 Conn., (pi. 23) has spores even smaller. 



This species with C. ligula, represents apparently an approach 

 toward Craterellus and there has been confusion in its treatment, 

 some authors treating forms of C. pistillaris as Craterellus species, 

 for example C. unicolor which Burt retains in Craterellus. Burt 

 follows Fries in accepting both Craterellus pistillaris Fr. and 

 Clavaria pistillaris L. (Ann. Mo. Bot. Gard. 1 : 340, pi. 16, figs. 

 11-13; pi. 17, fig. 14. 1914). In our opinion they are the same 

 thing if SchaefTer's plate 169 which is referred to by both Fries 

 and Burt is accepted as representing Craterellus pistillaris. 

 SchaefTer's plate 290 (as Clavaria gemmata) cited by Fries as 

 Craterellus pistillaris, may represent a different plant, as the spores 

 are shown by Schaeffer as spherical. However, if the spores are 

 spherical it is not the plant that Fries and Burt have in mind. 

 See Harper's good photo of Craterellus pistillaris in Mycologia 

 5: pi. 95. 1913. He says he agrees with Atkinson that the plant 

 he shows should be considered a "variety" of Clavaria pistillaris. 

 Atkinson says "form," not variety, and is in this correct, we 

 think. None of the rather numerous named varieties of this 

 species seems to be anything more than growth forms. The C. 

 pistillaris of Persoon's herbarium is like ours. Those labelled var. 

 minor are somewhat larger than our smallest specimens. Clav- 

 aria mira Pat. (Bull. Soc. Myc. Fr. 23: 71. 1907) should be com- 

 pared with this species. Craterellus taxophilus Thorn ( Bot. Gaz. 

 37: 215, figs. 1-8. 1904), a small plant with small spherical spores, 

 approaches the shape of C. pistillaris and has been transferred to 

 Clavaria by Lloyd (Myc. Notes No. 64: 1008, fig. 1856. 1920). 

 Burt retains it in Craterellus. In all forms of C. pistillaris we 

 have seen the hymenium is continuous over the top. Where the 

 apex is caved in and the surface layer fissured, the hymenium ex- 

 tends to the very edge of the fissure. There is therefore no an- 

 alogy in this respect to Craterellus. 



Juel (cited under C. cristata) studied microscopically both 

 Craterellus pistillaris and Clavaria pistillaris (as he calls them) 

 and decides that they are so similar that the former is only a 



