Clavarias of the United States and Canada 89 



The spore measurements given by different authors for C. con- 

 torta are so different as to indicate errors in determining it. 

 Clavaria molaris Berk. (Grevillea 7: 5. 1878) was originally 

 described as allied to C. contorta, but no type exists, and the color, 

 size and habit of growth suggest Corticium pezizoideum. The 

 typical C. fistulosa certainly grows on coniferous twigs, whether 

 on deciduous twigs also, we do not know. See Harper for a good 

 discussion with photographs of all the forms and species of this 

 group (Mycologia 10: 53. 1918). Clavaria Ardenia is the form 

 with inflated end, while C. macrorhiza is the form with a long, 

 root-like extension among the leaves. Harper has found all these 

 forms at Neebish, Michigan. 



Illustrations: Boudier. Bull. Soc. Myc. Fr. 33: pi. 1, fig. 5 (as C. con- 

 torta). 1917. 

 Flora Danica, pi. 1852, fig. 1. 



Harper. Mycologia 10: pi. 3 (as C. Ardenia) ; pi. 4, fig. A (as C. fis- 

 tulosa), fig. B. (as C. macrorhisa), fig. C. (as C. contorta). 1918. 



Holmskjold. Beata Ruris 1 : pi. 6 (as C. fistulosa) and pi. 12 (as C. 



contorta). 1790. Photographed in part by Burt in Ann. Mo. Bot. Gard. 



9 : pi. 10, figs. 96, 97. 1922. 

 Kalchbrenner. Ic. Hymen. Hung., pi. 35, fig. 7. 1874. 

 Krombholz. Abbild., pi. 5, fig. 19. 1831. 



Michael. Fiihrer £. Pilzfreunde, Vol. 2, No. 22 (as C. Ardenia). 1901. 

 Migula in Thome. Krypt.-Fl. Deutsch. 3, 2, 1: pi. 24B, fig. 2 (as C. 



Ardenia). 1912. 

 Sowerby. Engl. Fungi, pi. 215. 1799. 

 New York : Bassadoga. Peck and Clinton. (Albany Herb.). 

 Catskill Mountains. Peck and Clinton. (Albany Herb.). 

 Ithaca. Atkinson. (Cornell Herb., as C. Ardenia). 



Maine: Cumberland. Blake. (N. Y. Bot. Gard. Herb.). "Solitary on 

 ground in woods." 



Canada: Avon, Ontario. Dearness. (N. Y. Bot. Gard. Herb.). "On 

 ground in coniferous swamps." 



