[Vol. 13 

 250 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



59. C. abeuns Burt, n. sp. 



Type: in Burt Herb. 



Fructification broadly effused, thin, membranaceous, tender, 

 small pieces separable when moistened, whitish to ivory-yellow 

 and cream-buff in the herbarium, even, not cracked or but little 

 cracked, the margin whitish, thinning out, composed of inter- 

 woven hyphae; in section 100-240 [x thick, not colored, composed 

 of somewhat erect, interwoven hyphae 23^-3 [l in diameter, not 

 incrusted, and of slender gloeocystidia ; gloeocystidia 30-60 

 X 4-7 [I, numerous, immersed; spores hyaline, even, subglobose, 

 6-7 X 4-6 [X, copious. 



Fructifications 4-13 cm. long, 2-5 cm. wide. 



On decaying coniferous wood, rarely on bark of frondose species. 

 Maine to Alabama, in British Columbia and New Mexico, and in 

 Japan and South Africa. July to October. Infrequent. 



C. abeuns has the aspect of C. lacteum and C. radiosum and 

 spores of nearly the same size as in these species but not quite as 

 globose and further notably distinct from both by its slender, 

 flexuous gloeocystidia. 



Specimens examined: 

 Maine: Piscataquis County, W. A. Murrill, 1938 (in N. Y. Bot. 



Card. Herb., and Mo. Bot. Card. Herb., 63765). 

 New Hampshire: North Conway, W. H. Snell, 626 (in Mo. Bot. 



Card. Herb., 59293). 

 New York: Alcove, C L. Shear, 1215; Freeville, G. F. Atkinson, 



2595; Karner, C. H. Peck, comm. by N. Y. State Mus. Herb., 



T 7 (in Mo. Bot. Gard. Herb., 54557) and another specimen (in 



N. Y. State Mus. Herb., and Mo. Bot. Gard. Herb., 55784). 

 Alabama: Goldbranch, J. R. Weir, 10958 (in Mo. Bot. Gard. 



Herb., 63240); Montgomery, R. P. Burke, 229, type, and 471 



(in Mo. Bot. Gard. Herb., 57100, 57289). 

 Wisconsin: Madison, M. C. Jensen, comm. by C. J. Humphrey, 



617 (in Mo. Bot. Gard. Herb., 44785). 

 British Columbia: Sidney, J. Macoun, J^Oy 812 (in Mo. Bot. 



Gard. Herb., 55314, 62117); Squamish, J. Macoun, 496 (in 



Mo. Bot. Gard. Herb., 55184). 

 New Mexico: Datil National Forest, W. H. Long, 21046 (in Mo. 



Bot. Gard. Herb., 55145). 



