640 Murrill: Polyporaceae of North America 



~ r 



PoLYPORUS TOMENTOSO-QUERCINU3 Johtisoii, Bull. Minn. Acad. 

 Nat. Sci. i: 338. 1878. Described from the author's collec- 

 tions in Minnesota as follows : 



"Pileus at first soft, compact, spongy, tomentose, pulvinate, dimidiate, sessile, 

 very thick, divergently fibrous within, broad surface of attachment, dirty grayish white 

 when young, pale straw or subferruginous when old, hard, coriaceous, woody at 

 maturity ; pores large, irregular, toothed or fringed, easily separated, from ^ to I inch 

 long, varying in color from straw to bright orange." 



** Nearly always on the north side of living oaks. Pileus I to 2 inches thick, 2 to 

 5 inches broad. Spores numerous, white, globose, very small. Drops its spores in 

 May or early June* Plant is persistent, lasting the whole year. * * * Very scarce, 

 only seen occasionally." 



The above description applies very well to the western form of 

 Tramctes unicolor. It is necessary, however, to see the type plants 

 before definitely connecting the two forms. 



CORIOLUS Quel. Ench, Fung. 175. 1886 



Hansenia Karst. Medd. Soc. Faun, et Fl. Fenn. 5 • 39- ^ ^79- ^^^ 



Haiisenia Turcz. 1844. 



The genus Hansenia was founded upon Hansenia kirsnta 

 (WulQ, with seventeen additional species, and thus described : 



** Receptaculum pileatum, dimidiatum, sessile, primitus aridum et firmum. Pileus 



cuticula tenui, fibrosa, coriaceus, villosus, zonatus, contextu floccoso, tenaci. Hyme- 



nium homogeneum. Fori traraapilei distincti ejusque substantiae verticaliter oppositi, 

 subrotundi." 



Unfortunately, the name Hansenia had been proposed by 



mi 



Mosc. 17: 754) 



Quelet 



poms zonatus Fr. and seven other species, with the following 

 description : 



*' Pileus villosus, zonis concentricis, vulgo discoloribus, fasciatus. Spora oblonga, 

 alba. Lignatiles." 



.Polyporus hitescens Pers., the first species listed by Quelet 

 under Coriolus, is accompanied by the citation of a figure, but 

 this citation was but doubtfully given by Persoon in the original 

 description and the recent investigations of Bresadola, who has 

 examined Persoon's types, do not tend to confirm Quelet's 



opinion 



P. zonatus^ the first 



species accompanied by a correct citation of a figure. 



The species of this genus are mostly thin, dry plants \\\\\v a 



