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(POLYPORUS.) 



Rhipidium, N. Sp. On rotten trunks, in woods. — 



AVaynesville, August 21, 1844.^ 

 intybaceus, Fr. Cincinnati, 

 sulphureus, Fr. Waynesville.^ 

 hypococcinus, N. Sp. Waynesville. On rotten trunks. 



Sept. 7, 1844.3 

 molliusculus, N. Sp.* Cincinnati, 

 destructor, Fr. Cincinnati. 



' PoLTPOKUs Rhipidium : csespitosus; pileo coriaceo, reniformi, concentrice ; 

 sulcata, alutaceo-albo, cute in areolas furfuraceas secedente; stipite laterali, 

 brevi, sursum dilatato, pruinoso; poris par vis, albidis, angulatis, denticulatis. 

 quandoque elongatis. Pilei gregarious, CEespitosoimbricate, coriaceous, three- 

 quarters of an inch long and broad, deeply, concentrically sulcate, yellowish, 

 cracked into minute, furfuraceous areolse ; stem quarter of an inch high, late- 

 ral, dilated above, pruinose, yellowish when dry ; pores one-hundredth of an 

 inch in diameter, dirty white, angular, often elongated, edge of dissepiments 



uneven and toothed. This curious species exactly resembles Panus stypti- 



cus, with the exception of the hymenium. I know of no species to which it 

 has a close affinity. 



* The specimens are very thin and extremely beautiful. 



2 PoLTPORCs HYPOCOCCINUS : pilco subungulato, carnoso suberoso, intus fibro- 

 se zonatoque, inequabile, exalutaceo aurantiaco, incano, subtiliter tomentoso; 



poris parvis, longis, e pileo secernibilibus, aurantiis, intus coccineis. Pileus 



several inches across, subungulate or expanded, of a soft coriaceous or corky 

 substance, uneven, buff and orange, becoming whitish when dry, very mi- 

 nutely tomentose ; substance pale buff, (sometimes pink when dry.) consisting 

 of fibres which radiate from the base and are crossed by concentric zones, 

 hymenium bright crimson-orange; pores one-seventieth of an inch broad, an 

 inch long, crimson within; edge of dissepiments orange, slightly thickened 



and flexuous, separable from the flesh and partially from each other. This 



magnificent species approaches, in some respects, the genus Fistulina, but the 

 pores, though partially separable, are those of a Polyporus. Its situation is 

 amongst the Anodermei. 



* PoLXPOKUS molliusculus: imbricatus; pileis effuso-reflexis, sublobafis, 

 leviter zonatis, albis, zonis strigis mollibus sparsis ornatis; contextu albo; 



poris mediis pallidis. Imbricated, thin, four inches or more long, three 



inches broad, sometimes perfectly resupinate, more generally with the border 

 broadly reflected and slightly lobed, white finely silky, or nearly smooth, with 

 zones of soft strigas, which, in the dried plant are perfectly innate ; substance 

 white, thin, corky when dry; pores one-forty-eighth of an inch broad, at first 

 entire with thick dissepiments, at length lacerated and elongated, wood- 

 colored. Resembling in general appearance Polyporus alutaceus, as figured 



by Rostkovius, but much thinner. I cannot refer it to any described species. 

 Its position is amongst the white Anodermd. 



