[Vol. 12 

 222 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



when fresh, becoming light buff in the herbarium, even, setulose 

 with the cystidia, the margin composed of radiating hyphae; in 

 section 250-300 [x thick, not colored, composed of densely inter- 

 woven, rather thick-walled and rigid, ascending hyphae 3-4 [i in 

 diameter, not incrusted; no gloeocystidia ; cystidia incrusted, 

 fusoid, 50-60 X 12-15 [l, scattered in the surface of the hymen- 

 ium; spores in a crushed preparation are hyaline, even, 4 x 3 (x, 

 so few that they may not belong. 



Fructifications about 2 mm. in diameter, becoming more or less 

 confluent over areas up to 3 cm. long and 1 cm. wide. 



On bark of dead frondose limbs. West Indies. December and 

 March. 



P. inconspicua has small clustered fructifications becoming 

 confluent and very large cystidia scattered along the surface of 

 the hymenium and none wholly immersed. In one portion of 

 my sections the hj^hae next to the substratum are slightly 

 brownish and suggestive of those of a resupinate Stereum but I 

 do not recall an effuso-reflexed Stereum of which P. inconspicua 

 may be the resupinate fructification. 



Specimens examined: 

 Cuba: Mountain of Rangel, C. Wright, Fungi Cubenses Wrighti- 



ani, 841, type (in Kew Herb., Curtis Herb., Mo. Bot. Gard. 



Herb., Burt Herb., and an unnumbered portion in N. Y. Bot. 



Gard. Herb.). 

 Porto Rico: Rio Piedras, /. R. Johnston, 1664, comm. by J. A. 



Stevenson (in Mo. Bot. Gard. Herb., 13223). 



5. P. galochroa Bresadola, Hedwigia 35: 200. 1896; Sacc. 

 Syll. Fung. 14:224. 1899. 



Type: a part in Burt Herb. 



Broadly effused, membranaceous, small pieces separable, from 

 white becoming pinkish buff, finally cracked and silky along the 

 crevices, the margin somewhat fimbriate at first, soon similar; in 

 section 250-400 \i thick, not colored, with hyphae rather stiff, 

 thick-walled, 2-2]/^ (x in diameter, not incrusted, not nodose- 

 septate, longitudinally arranged in a thin layer next to the 

 substratum, densely interwoven in the broad middle region, the 

 hjinenial layer about 50^1. thick; no gloeocystidia; cystidia coarsely 



