[Vol. 13 

 278 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Fructifications effused, small, becoming confluent longitudi- 

 nally but very narrow, closely adnate, thin, becoming pale drab- 

 gray to pinkish buff in the herbarium, pruinose, cracking trans- 

 versely in drying, the margin paler; in section 60-120 [l thick, 

 composed of 3 equal layers, of which that next to substratum 

 consists of densely, longitudinally interwoven, slightly colored 

 hyphae lJ^-2 [l in diameter, not incrusted nor nodose-septate; 

 the middle layer contains numerous pyriform bodies 12 X6(i 

 which are presumably basidia; the outer layer is composed of 

 bushy-branched paraphyses 3 y. in diameter with final branchlets 

 and lateral prongs about % [t. in diameter; detached spores 5-8 

 X 3-4 (x, few present and may not belong. 



Fructifications 6-10 mm. long, 1-2 mm. wide, becoming more or 

 less confluent over areas up to 5 cm. long and 3 cm. wide. 



In crevices of the bark of dead wood of wild species of Vitis. 

 Pennsylvania, Virginia, and Michigan. February and May. 

 Rare. 



C. albido-carneum is a very rare species which has been col- 

 lected but few times and in small quantity for critical study. 

 The specimens seem immature and the tissues of the fructifica- 

 tions are so minute and the covering of paraphyses so trouble- 

 some that I have been unable to make out the detailed structure 

 of the basidia. The plan of structure is suggestive of a Sebacina 

 but I have been unable to demonstrate longitudinal septa in any 

 of the pyriform organs. The somewhat smoky color of the 

 sections, their 3-layered structure, and occurrence on bark of 

 dead wild grape trunks are a combination of characters which 

 should afford ready recognition of this species. The dates of 

 collection of the specimens seem to indicate that the species 

 may fruit in winter. If some of the pyriform organs are gloeo- 

 cystidia, C. pilosum may prove not specifically distinct. 



Specimens examined : 

 Pennsylvania: Bethlehem, Schweinitz, type (in Schweinitz Herb., 



Kew Herb., and Farlow Herb.). 

 Virginia: Arlington Farm, C. L. Shear, 2810 (in Mo. Bot. Gard. 



Herb., 15310). 

 Michigan: Paw Paw, L. A. Hawkins, comm. by C. L. Shear. 



