[Vol. 2 



714 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



chestnut crust, zonate; context white to light brown, usually 

 separated into an upper light-colored layer and a lower brown 

 layer, never entirely white, 0.2-1.5 cm. thick; tubes 0.3-1.5 

 cm. long, the mouths white to umber, averaging 3-5 to a mm. ; 

 stipe lateral or excentric when present, with color and con- 

 text as in the pileus ; spores light brown, ovoid with a trun- 

 cate base, smooth or appearing echinulate, 9.5-11 X 5-6.5 /*; 

 cystidia none ; hyphae of context hyaline or brown, branched, 

 4-10 n in diameter. 



On and about stumps and trunks of deciduous trees. 



Illustrations: Bot. Gaz. 46:/. 5. — Dufour, Atlas Champ. 

 pi. 49. f. 116.— Gill. Champ. Fr. pi. 457.— Hard, Mushrooms, 

 , 332.— Krombh. Abbild. u. Beschr. pi. 4. f. 22-24.— Rostk. 



in Sturm's Deutsch. Fl. 3: fasc. 5. pi. 13. 



Specimens examined: Ell. N. Am. Fung. 5. — Ell. & Ev. 

 Fung. Col. 202 (Delaware).— Krieg. Fung. Sax. 1116.— Rav. 

 Fung. Am. 5.— Thuem. Myc. Univ. 104.— Mo. Bot. Gard. Herb. 

 43149, 4095, 4024, 4144 (Missouri), 43939 (Illinois).— Burt 

 Herb, (collection from Vermont). — Overholts Herb, (collec- 

 tions from New York, Florida, Ohio, Illinois, and Missouri). 



3. Polyporus Tsugae Murrill ex Overholts n. comb. 



Plants stipitate; pileus flabelliform or reniform, 5-15 X 

 7-20 X 1-4 cm., with a mahogany-colored or almost black, 

 shining, incrusted surface, sulcate; context white or nearly 

 ,so throughout, 0.5-2 cm. thick; tubes 0.5-1 cm. long, the 

 mouths white to brown, averaging 4-6 to a mm. ; stipe present, 

 with color and context as in the pileus; spores light brown, 

 ovoid with a truncate base, apparently echinulate, 9-11 X 6-7 

 fi ; cystidia none ; hyphae of context very irregular and much 

 branched, up to 15 n in diameter. 



On or about stumps and trunks of hemlock and pine. 



Specimens examined: Burt Herb, (collection from Ver- 

 mont). — Overholts Herb. 2338 (Vermont). 



Fomes Ellisianus And. and F. fraxinophilus Peck 



Fomes fraxinophilus was described by Peck from New York 

 in 1882. It was first described as a Polyporus and later trans- 













