598 Murrili. : Polyporaceae of North America 



fruit-bodies, the host must have been the small dead or dying 

 branches of some broad-leaved tree. 



6. Inonotus corrosus sp. nov. 



Pileus conchate, clasping, simple or imbricate, 3X 5X 1-4 cm -; 

 surface ferruginous to fulvous, furrowed and much corroded in age ; 

 margin entire, obtuse, tomentose, honey-yellow : context thick, 

 spongy, fibrous, ferruginous, perforated by insects soon after ma- 

 turity ; tubes very short, only I mm. long each season, 8 to a 

 mm., fulvous, subcylindrical, edges entire, obtuse to acute ; spores 

 lenticular, smooth, pale ferruginous, 411 in diameter, \;i thick, 

 hyphae deep ferruginous. 



The type plants of this species were collected by Earle, no. 

 20J, near Hope Gardens, Jamaica, October 27, 1902. They 

 grew upon a dead vine clinging to a tree. Two or three years 

 growth were represented in the much weathered and wormeaten 

 central parts of the sporophores, while the latest growths stood 

 out in marked contrast. The flattened appearance of the spores 

 may be due to desiccation, but this character is fairly constant. A 

 single sporophore of this species was also collected in the island 

 of New Providence by Britton, no. 246, Aug. 24, 1904, growing 

 on a small dead twig. 



What appear to be specimens of this same plant are placed at 

 Kew under Poly poms clay sites Berk., a species described from the 

 region of the Rio Negro river in Brazil as thin and leathery, while 

 the various plants bearing that name at Kew are mostly thick and 

 soft or even hard and perennial. Specimens collected in Cuba by 

 Wright should probably belong to /. corrosus instead of to P. 



chrysites. 



7. Inonotus Wilsonii sp. nov. 



Pileus dimidiate, applanate, sessile, 2-3 x 4~ 6 * 0.5 cm. ; sur- 

 face anoderm, velvety-tomentose, fulvous, marked with a few 

 shallow concentric furrows ; margin thin, entire, concolorous, 

 sulcate, deflexed in drying : context soft, punky, homogeneous, 

 ferruginous-fulvous, 1-3 mm. thick, separated from the tubes by a 

 very thin black layer ; hymenium ferruginous, glistening, tubes 

 1-2 mm. long, 6-9 to a mm., isabelline within, mouths polygonal, 

 regular, edges thin, entire ; spores lenticular, smooth, pale ferrug- 

 inous, 3-4/' in diameter, 1 — 1.5 [i thick. 



This species was collected by Percy Wilson, no. 43S, on decay- 



