[Vol.. 4 

 248 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



11:124. 1895. — Coniophora alboflavescens (Ell. & Ev.) v. 

 Hohn. & Litsch. K. Akad. Wiss. Wien Sitzungsber. 116 : 791. 

 1907. — Coniophora Petersii v. Hohn. & Litsch. K. Akad. Wiss. 

 Wien Sitzungsber. 117 : 1086. 1908, but not Corticium Petersii 

 Berk. & Curtis. 

 Type : type and cotype in Kew Herb, and Curtis Herb. 



Fructification effused, membranaceous, 

 separable, drying pinkish buff, the margin 

 white, cottony, often with radiating my- 

 celial strands; hymenium even, pulveru- 

 lent; in structure 400-1000 n thick, com- 

 posed (1) of a supporting layer of very 

 loosely interwoven, hyaline hyphae 2^/^-3 

 /i in diameter, incrusted with scattered 

 granules, and (2) of a compact hy- 

 menium; no cystidia; spores slightly col- 

 ored under the microscope, even or 

 slightly rough, 6-8X4V2-6 n. 



Fructifications 1-15 cm. long, 1-5 cm. 

 broad. 



^^s- 6 Qji prostrate fallen limbs and wood of 



SportXXT'^x'ees. various frondose and, more rarely, co- 

 niferous species, and on bark at bases of 

 trees. New Hampshire to Florida and westward to Michigan 

 and Arkansas. June to March. 



This fine species has the color and surface texture of buck- 

 skin leather and a distinctly white margin. The spores differ 

 from those of other species of the genus in having so little 

 color and in absorbing eosin stain so intensely that their orig- 

 inal color is masked by the dye and the species likely to be 

 mistaken for a Corticium. The roughish spores show rela- 

 tionship to Hypochnus. 

 Specimens examined: 

 Exsiccati: Ell. & Ev., N. Am. Fungi, 1716, under the name 

 Corticium Petersii, and 3005, under the name Corticium 

 alboflavescens ; Ell. & Ev., Fungi Col., 608, under the name 

 Corticiuyn Petersii, and 403, under the name Corticium albo- 

 flavescens; Ravenel, Fungi Am., 125, under the name Cor- 



