1916] 



BURT THELEPHORACEAE OF NORTH AMERICA VI 



219 



Fig. 9 

 H. granulosus. 

 Spore, hyphal 

 strandxeiO. 



Type : in Coll. N. Y. State. 



Fructification effused, thin, membranaceous, separable 

 from the substratum, granular, sepia, the margin somewhat 

 radiate, concolorous or nearly so ; in struc- 

 ture 200-400/u. thick, composed of very loosely 

 interwoven, thin-walled, occasionally nodose- 

 septate, hyphae 2i/^-4)u. in diameter, yellow- 

 ish under the microscope, forming near the 

 substratum some rope-like mycelial strands 

 up to 15|ti in diameter; spores concolorous 

 with the hyphae, angular-subglobose, acule- 

 ate, the body about 6fi in diameter; KHO solution produces 

 no noteworthy color change in sections. 



Fructifications 2-4 cm. long, 1-2 cm. broad. 



On rotten bark and wood of frondose species. Massachu- 

 setts to New Jersey and Ohio. September to November. 

 Eare. 



H. granulosus is very closely related to H. coriarius and 

 is distinguished from it by uniform color of the whole sur- 

 face, while H. coriarius has the margin ochraceous-tawny. 

 The lack of noteworthy color change by KHO solution is the 

 only additional feature of difference for separating H. gran- 

 ulosus from H. coriarius. The specific name tabacina of 

 Cooke and Ellis has priority, but is not now available be- 

 cause Bresadola has already used the name Hypochnus ta- 

 hacinus for a valid species. 



Specimens examined: 

 Exsiccati : Ellis, N. Am. Fungi, 421, under the name Zygo- 



desmus chlorochaites. 

 Hungary: A. Kmet, authentic specimen of H. elaeodes from 



Bresadola, probably a portion of the type. 

 Massachusetts: Newton, W. G. Farlow; Mt. Tom, H. W. 



Harhness, type (in Coll. N. Y. State). 

 New York: Albany, H. D. House S J. Ruhinger (in Mo. 



Bot. Gard. Herb., 8733) ; Karner, H. D. House (in Mo. 



Bot. Gard. Herb., 44731) ; Alcove, C. L. Shear, 1316, in 



part. 



