92 



Mycologia 



4 to a mm. ; spores scarce, narrowly-ovoid, smooth, hyaline, 

 5X2.5/1. 



Type collected on a well-rotted, decorticated log of Juniperus 

 monosperma near the Gila National Forest, New Mexico, Oc- 

 tober 23, 191 1, W. H. Long & G. G. Hedgcock. This is said by 

 the collectors to be common, but I have only this one packet, 

 which is without a number. 



27. Poria heteromorpha sp. nov. 



Effused for many centimeters, continuous, usually separable 

 because the substratum is much decayed, quite thick ; margin con- 

 spicuous, thin, cottony, white, becoming fulvous with age; con- 

 text thin, similar to the margin; hymenium uneven, continuous, 

 white when young, ochraceous or fulvous with age, usually reviv- 

 ing; tubes large, thin-walled, entire, somewhat collapsing, 1-2 

 mm. long, 2 to a mm., becoming much elongated with age in 

 oblique positions, the long undulate dissepiments resembling 

 lamellae; spores copious, subglobose to broadly ovoid, uniguttu- 

 late, smooth, hyaline, 3-4 fi long, 5 ^ in the Florida specimens. 



Type collected on very rotten wood in Troy and Tyre, Cockpit 

 Country, Jamaica, January 12-14, 1909, W. A. Murrill & W. 

 Harris 857. Also collected at the same time and place by W. A. 

 Murrill & W. Harris 865; on very rotten wood near Port An- 

 tonio, Jamaica, December 17, 1908, W. A. Murrill 188; on very 

 rotten wood at Rio Piedras, Porto Rico, July 26, 1915, /. A. 

 Stevenson 2891 ; and on dead leaf-stalks of Sabal Palmetto near 

 Ocala, Florida, August 11, 1913, W . H. Long 12360. 



This is a species of very unusual appearance, with a hymenium 

 varying from poroid to somewhat daedaleoid and reminding one 

 of Lenzites heteromorpha. It likes wood almost reduced to 

 humus and can be stripped off in large flakes, which are soft, 

 flexible, and very light in weight. After the old hymenophores 

 are discolored and appear dead, patches of fresh white tubes will 

 arise from portions of the hymenial surface. This frequently 

 happens, however, with annuals in tropical countries and may be 

 due to the recurrence of rains. 



New York Botanical Garden. 



