1925] 



BURT — THE THELEPHORACEAE OF NORTH AMERICA. XIV 343 



eosin until the sections have cleared somewhat in the permanent 

 glycerine mount. The color of the densely interwoven tissue of 

 the fructification should aid in recognition of the species. 



Specimens examined: 

 Idaho: Priest River, /. R. Weir, 23S45, type (in Weir Herb.). 



112. P. Farlowii Burt, n. sp. 

 Type: in Burt Herb. 



Fructifications effused, closely adnate, rather thick, pale 

 olive-buff in the herbarium, even, somewhat cracked and showing 

 the tissue to be horn-like and somewhat resin-colored (pecan- 

 brown) where exposed on sides of the fissures, the margin thin- 

 ning out, composed of finely interwoven hyphae; in section 250- 

 350 [JL thick, somewhat colored, inclosing some portions of the 

 substratum, composed of densely interwoven and conglutinate 

 hjT^hae 2-3 (x in diameter, not incrusted, not nodose-septate, 

 indistinct; no gloeocystidia; cystidia incrusted, 30-70 X 12-15 [i, 

 protruding up to 30 (x, few and scattered; spores hyaline, even, 

 4 X 2ix. 



Fructifications in fragments 2-3 cm. long, 2 cm. wide. 



On very rotten frondose wood. New Hampshire. September. 



P. Farlowii shows in the dried specimen a pale olive-buff 

 hymenium covering a horn-like, somewhat resin-colored under- 

 lying layer; the cystidia are so large as to be a good distinctive 

 character. 



Specimens examined: 

 New Hampshire: Chocorua, Bowditch Swamp, W. G. Farlow, 16, 



type. 



113. P. colorea Burt, n. sp. 

 Type: in Burt Herb. 



Fructifications longitudinally effused, very thin, closely adnate, 

 light drab, not shining, even, the margin thinning out, indeter- 

 minate; in section 70-80 [x thick, light drab, 2-layered, with a 

 layer along the substratum about 30 [i thick, of densely longi- 

 tudinally interwoven, somewhat colored hyphae about 3 [x in 

 diameter, indistinct, conglutinate, and with a colored hymenial 

 layer of erect basidia, paraphyses, and cystidia; no gloeocystidia; 



