[Vol. 13 

 246 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



woven, conglutinate hyphae u]) to 3 ;j. in diameter, not incrusted, 

 with wall gelatinously modified, the outline not well defined; no 

 gloeocystidia ; spores hyaline, even, 5-6 X 2-2 J/^ (x, copious. 



Fructifications 13/2~3 cm. long, 1-2 cm. wide. 



On thick bark of dead Pinus rigida. Pennsylvania. October. 



C. Overholtsii has the livid color of C. vinaceo-scabens but nothing 

 else in common with that species. In structural details it is re- 

 lated to C. lividum but does not have the appearance of dried 

 cartilage or resin, characteristic of all specimens of the latter 

 known to me. 



Specimens examined: 

 Pennsylvania: Reitz Gap, L. 0. Overholts, 4656, type (in Mo. Bot. 



Card. Herb., 57155). 



55. C. Pseudotsugae Burt, n. sp. 

 Ty^pe: in Mo. Bot. Gard. Herb. 



Fructifications effused, closely adnate, very thin, not at all 

 separable, light buff in the herbarium, even, not shining, not 

 cracked, the margin similar, thinning out, pulverulent; in section 

 45-55 [X thick, not appreciably colored, composed of densely in- 

 terwoven hyphae about 1H~2 (x in diameter, not incrusted, con- 

 glutinate; no gloeocystidia; basidia with 4 sterigmata; spores 

 hyaline, even, 3-5 X 2-3 ;x. 



Fructifications 5-8 cm. long, 1-2 cm. wide. 



On decorticated, decaying wood of Pseudotsuga taxifolia and 

 Tsuga canadensis. New York and Idaho. August to November. 



C. Pseudotsuga is almost exactly the avellaneous color of 

 Saccardo's 'Chromotaxia.' This color, occurrence on hemlock, 

 and very thin fructifications are the most available characters for 

 recognition of the species. 



Specimens examined: 

 New York: Freeville, G. F. Atkinson, 2627. 

 Idaho: Sandpoint, E. E. Hubert, comm. by J. R. Weir, 11617, type 



(in Mo. Bot. Gard. Herb., 63305). 



56. C. confine Bourdot & Galzin, Soc. Myc. Fr. Bui. 27: 260. 

 1911. 



Type: authentic specimen in Burt Herb. 



