92 



Mycologia 



CoLTRiciA PERENNis (L.) Murrill. Quite common in dry, sandy 

 places in woods. 

 Seattle, 44; Tacoma, 68. 



CoRiOLUS ABiETiNus (Dicks.) Quel. Common on dead coni- 

 ferous trunks. No trace was found of C. prolificans, a near 

 relative so abundant on deciduous wood in the eastern United 

 States. 



Seattle, 71; Glen Brook, 757. 



CoRiOLUs NiGROMARGiNATUs (Schw.) MurriU. Rarely seen, but 

 abundant in places. 

 Seattle, 46. 



CoRiOLUs VERSICOLOR (L.) Quel. Common on oak and maple in 



Oregon and California. Not seen at Seattle. 



Corvallis, 88 Newport, /075; Preston's Ravine, ii6y, Muir 

 Woods, 1149. 



Coriolus washingtonensis sp. nov. 



Pileus small, dimidiate, sessile, laterally connate, slightly de- 

 current behind, sometimes effuse, tough, flexible, milk-white 

 throughout, becoming slightly yellowish above on drying, and 

 grayish behind with age, projecting about 5 mm. from the sub- 

 stratum, extending sometimes 10 cm. along cracks in the bark, 

 reaching 5 mm. in thickness behind; surface azonate, smooth, 

 subglabrous, margin undulate or lobed, sterile, rather thick for 

 the genus ; context thin, soft, flexible ; tubes 1-4 mm. long, corky, 

 mouths regular, glistening, slightly angular, 2 to a mm., edges 

 thin, entire ; spores ovoid, smooth, hyaline, 5 X S-S/a- 



Growing from crevices in the bark of a dead log of Thuya 

 pUcata. It somewhat resembles Coriolellus Septum in shape, but 

 the pilei are scarcely semi-resupinate, the tubes are regular, and 

 the context is much more flexible. 



Seattle, loi {type). 



IscHNODERMA FULiGiNosuM (Scop.) MurriU. Found once, on a 

 decaying red fir log. 

 Seattle, 102. 



Laetiporus speciosus (Battar.) Murrill. Collected once, on 

 an oak log, but not uncommon on the Coast. 

 Tacoma, 82. 



