184 



Mycologia 



112. Trametes hetermorpha Fries. 



On Pseudotsuga taxifolia, Corvallis. March. Infrequenf. No. 2092. 



113. Trametes hispida Bagl. 



On Populus, Freewater. May. Rare. No. 2017 (O. A. C. Herb. 

 2123). 



This large fruiting body, 18x10x7 cm., is more or less of a mon- 

 strosity for this species. The tubes are extremely variable and large, 

 reaching 25 mm. in length. The variation seems mainly to be one of 

 size for in microscopic characters it is not very different from T. hispida. 



114. Merulius brassicaefolius Schw. 



In November, 1919, Mr. C. E. Waterman of Newberg sent me a speci- 

 men of this fungus which he collected from a sill of Douglas fir wood. 

 The sills are about 20 inches from the ground and resting on oak blocks. 

 The specimen of decayed wood sent with the fungus is a brown, dry rot 

 which runs very rapidly during humid weather. The hyphae in the lumen 

 of the tracheids are hyaline, 3-4 fi in diameter and septate with occa- 

 sional clamp-connections. This collection extends the range of this fungus 

 west from Louisiana. No. 1780. 



. Fig. 1. Fructifications of Merulius pilosus Burt. Nat. size. .. .. 



115. Merulius pilosus Burt, sp. nov. 

 ' ■ i Fructification resupinate, orbicular, fleshy, separable, drying capu- 

 , cine-buff, the margin entire, rather thick; hymenium at first with some- 

 what radial folds which become venosely connected and form shallow, 

 angular, irregular pores about 1 to 2 to a mm. ; in structure about 1-1 % 

 mm. thick, composed' of densely arranged, hyaline hyphae, 3 — 4 fl> in 

 diameter, not incrusted ; clavate gloeocystidia up to 60x10-12 /i are 

 abundant in the subhymenial region ; cylindric hair-like cystidia, 3-4 ^ 

 in diameter, emerge up to 40 /m in the hymenium; spores hyaline, even, 

 3 x 2 fi. Fructification 6-7 cm. in diameter. 



