Descriptions of New Species of Fungi. 



207 



concave; pores one hundredth of an inch broad, scarcely visible to the 

 naked eye, but giving to the h3 T rnenium a silky lustre, white ; dissepi- 

 ments very thin, slightly uneven. Nearly allied to P. undulatus, 

 Schwein., and P. symphyton, Schwein. The dried' specimens are rigid, 

 and sometimes have the margin dark brown. 



Polyporus dryophilus, d. sp. — On living red oak. Waynesville, 

 Sept. 5, 1844. 



Pileo crasso, rigido, ungulato, scabroso, inaaquabili, incanoferrug- 

 ineo-flavo ; contextu ciunamomeo; Irymenio cinnamomeo-fusco; poris 

 parvis, intus rhubarbarinis. 



Pilei subimbricate, four inches broad, three inches long, ungulate, 

 unequal, rough with scabrous points formed by innate pubescence of 

 a ferruginous yellow, but subdued by a thin white film ; substance 

 fibrous, hard, cinnamon ; pores externally cinnamon brown, within 

 ferruginous }'ellow, about one eightieth of an inch broad, angular, with 

 thin dissepiments. Nearly allied to P. dryadeus, but a smaller, more 

 rigid species, with larger, differently colored pores. It has also much 

 resemblance to P. gilvus. 



Polyporus pubescens, Fr. — On rotten trunks and dry fence rails. 

 Waynesville, Aug. 26, Sept. 9, 1844.* 



Polyporus conchifer, Schwein — Waynesville, Sept. 9, 1844.f 



Polyporus conglobatus, n. sp. — On beech, bursting through the 

 bark. Cincinnati, Jul} r 11, 1837. On a hickory stump, June, 1844. 



Pileis suberosis, erumpentibus, arctissime imbricatis, massam glo- 

 bosam efformantibus, arcuatis,rugosis, fusco-purpureis, margine pallide, 

 postice leviter laccatis ; hymenio brunneolo; poris punctiformibus ; dis- 

 sepimentis obtusissimis. — Berk, in Hook. Lond. Journ. } vol. iv., p. 303. 



Forming a compact, globular mass, four or five inches in diameter, 

 consisting of closely pressed, curved, imbricating pilei, united at the 

 base into a mottled mass, consisting of bark highly impregnated with 

 mycelium, purplish brown behind, where it is laccate with a dark 

 bloom, pallid in front; substance, corky, rather soft, ferruginous; hy- 

 menium concave, scarcely conspicuous without dividing the pilei, 

 brown; pores minute, punctiform, pale within; interstices even, obtuse. 



* A small variety not exceeding an inch in breadth, and the third of an inch in length. 



t Nothing can well be more different than the pure white, adult individuals, and the 

 elegantly brown -zoned plant, looking like some states of Thelephora evolvens, before the 

 pores are formed. Occasionally the whole upper surface is clothed with a cracked brown 

 stratum, not disposed at all in zones. 



