[Vol. 3 

 240 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



cystidia ; basidia with 4 sterigmata ; spores white in collection 

 on slide, ovoid, minutely echinnlate with short crowded spines, 

 spore body 3-5x2%-31/2/a. 



Fructifications 3-10 cm. long, l%-4 cm. broad. 



On rotten wood and bark of both coniferous and frondose 

 species. Canada to North Carolina and westward to Wash- 

 ington, and in Jamaica. April to January. Common. 



Collections of this species have been placed by recent 

 authors in the genera Corticium, Phlebia, and Odontia, as an 

 anomalous species which has no relationship to the species 

 proper of these genera. The affinities of this fungus are 

 with the species of Hypochnus by habit, dry hypochnoid 

 structure, form of hymenial surface, and form of spore. The 

 species is best regarded as a hyaline-spored Hypochnus j 

 which is naturally connected with the dark-spored members 

 of this genus by the pale-spored H, ecJiinosporus, H. zygodes- 

 moides, etc. The existence of an authentic specimen of Hy- 

 pochnus fumosus is unknown to the writer, but this fungus 

 is so distinguished among the species of Thelephoraceae that 

 the lack of such a specimen is not serious in this case. Romell 

 and Bresadola regard this fungus as the H. fumosus of Fries. 

 My own study of the large series of Scandinavian Thele- 

 phoraceae received from Eomell and Karsten leads me to 

 the same conclusion. 



Specimens examined: 

 Exsiccati : Ellis, N. Am. Fungi, 509 ; Ell. & Ev., Fungi Col., 



1018, in both under the name Odontia fusca. 

 Sweden: Stockholm, L. Romell, 96. 

 Austria-Hungary : Tatra Magna, F. Greschik, two collections, 



comm. by G. Bresadola. 

 Canada :' locality not stated, J. Macoum, 27; Lower St. Law- 

 rence Valley, J. Macoun, 23. 

 New Brunswick: Campobello, W. G. Farlow, 6. 

 Ontario: Ottawa, J. Macoun, 24; Harraby, Lake Eosseau, 



E. T. d 8. A. Harper, 744. 

 British Columbia: near Salmo, J. R. Weir, 460, 528 (in Mo. 



Bot. Gard. Herb., 9207 and 22647 respectively). 



