[Vol. 13 

 256 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Fructifications 4-6 cm. long, 13^-23^ cm. wide, and broken 

 off on three sides in the specimens seen. Probably large. 



On bark of decaying frondose wood. West Indies. 



This tropical species is somewhat related to C. lactescens but 

 differs in not becoming cracked nor stratose and in having its 

 gloeocystidia of nearly equal length and arranged side by side in 

 palisade manner in the hymenial layer. 



Specimens examined: 

 Grenada: Chilly Brook, Grand Etang, R. Thaxter, type, comm. 



by W. G. Farlow, 16. 



65. C. Macounii Burt, n. sp. 



Type: in Burt Herb. 



Fructifications widely effused, closely adnate, soft and fleshy 

 when fresh, drying somewhat cartilaginous, small pieces separable 

 when moistened, white, becoming ivory-yellow in the herbarium, 

 even, sometimes cracking in drying, the margin thinning out; in 

 section 60-150 (jl thick, not colored, with the hyphae suberect, 

 branching, 23^-3 \l in diameter; gloeocystidia, or perhaps con- 

 ducting organs, very slender, 30-90 X 3-33^2 y., starting from the 

 substratum; spores hyaline, even, subglobose, slightly flattened 

 on one side, 8-10 X 6-9 ji, pointed at base, copious. 



Fructifications 3-8 cm. long, 1-2 cm. wide. 



On decorticated, decaying pine wood. Canada, and perhaps 

 New Hampshire and New York. October. Rare. 



C. Macounii is much thinner than C. Berkeleyi and contracts in 

 drying to a horn-like coating on the wood. The gloeocystidia or 

 conducting organs are distinctive but inconspicuous. The 

 specimens from New Hampshire and New York are a little 

 thicker than the Canadian specimens by the presence of a layer 

 of hyphae densely arranged, parallel with the substratum. 



Specimens examined: 

 Canada: Lower St. Lawrence Valley, J. Macoun, 86. 

 Quebec : Hull, J. Macoun, 368, type. 

 New Hampshire: Chocorua, W. G. Farlow. 

 New York: Ithaca, G. F. Atkinson, 14102. 



66. C. argentatum Burt, n. sp. 

 Type: in Burt Herb. 



