1919] 



BURT — PUOTOMERULIUS FARLOWII 



177 



composed of densely and longitudinally arranged, hyaline, thin- 

 walled hyphae 3 n in diameter ; subhy menial layer elevated above 

 the substratum by scattered clusters of hyphae; basidia longi- 



tudinally 



10 X 7 m, with slender sterigmata 



hyaline, even, subglobose, 6 X 



A 



3 



O 



8° 



Fig. 1. P. Farlowii. a, fructification viewed from above, showing pores 

 in black and folds and dissepiments in white, X 68; / and/, section of fruc- 

 tification showing pore between folds, X 375 ; b, basidium, and s, spores, X 



375. 



Fructifications in small gregarious patches 2-10 mm. in 

 ameter. 



di 



On verv rotten, decorticated, coniferous wood. New Hamp 



shire 



Septemb 



Probably 



P. Farlowii should be recognized in the field by its purple color 

 and aspect of Tulasnella, and the pruinose surface which is shown 

 by a good lens to have the surface configuration of Merulius. 

 The very minute, angular pores, thin and lacerate dissepiments 

 with acute edges, the very small fructifications, and purple color 

 when fresh separate this species from P. brasiliensis. 



Specimens examined : 



New Hampshire : Chocorua, W . G. Farlow, 6*, type (in Far- 

 low Herb, and in Mo. Bot. Gard. Herb., 55596). 



