JAN. 1896. FLORA OF W. , VIRGINIA MILLSPAUGH & NUTTALL. 135 



DIATRYPE Fr. 

 D. Stigma (Hoffm.) Fr. 



On Castanea dcntata, April 15, 1895 (Nuttall, 1799)- 



D. platystoma (Schw.) Berk. 



On Magnolia Fraseri, Feb. 8, 1894 (Nuttall, 1380, 342). 



DIATRYPELLA C. & DeNot. 



D. verruciformis (Ehrh.) Nits. 



On Alnus rugosa, Nov. 20, 1893 (Nuttall, 1258). 



, ROSELLINIA DeNot. 



R aquila (Fr.) De Not. 



On dead limbs, March 21, 1893 (Nuttall, 919, 19). 



R. corticium (Schw.) Sacc. 



On dead oak, alt. i, 800 ft., Short Creek. Spores 25 to 30 x 10 

 to 12.5 //.. Dec. 1 6, 1893 (Nuttall, 1310). 



R. subiculata (Schw.) Sacc. 



On dead dry Robinia Pseudacacia, July 15, 1893. Perithecia 

 clustered or connate, each 3 to 5 n, black, ostiola papillate. 

 Spores 9 to 12.5 x 5 to 6 ;i somewhat inequilateral, elliptical, 

 colored. (Nuttall, 1129). 



R. pulveracea (Ehrh.) Fckl. 



On dead wood, Nov. 1893. Spores 10 to 15 x 7 to 9 // (Nutt- 

 all, 1338). 



R. millegrana (Schw.) Sacc. 



On dead Platanus occidentalis, Aug. 2, 1893 (Nuttall, 1161). 



R. abietina trichota C. & Ell. 



On Pinus Virginiana, Jan. 7, 1895 (Nuttall, 1784, 675). 



BOMBARDIA Fr. 

 B. fasciculata Fr. 



On wet dead limb, Magnolia Fraseri, eta ground, Sep. 16, 1895 

 Nuttall, 1830). 



ANTHOSTOMA Nits. 



A. micrcecium E. & E., Proc. Phila. Acad., 344 (1894). 



TYPE HABITAT: On dead limbs Asimina triloba, Feb. 12, 1894 

 (Nuttall, discov. 1377). 



Stroma cortical, faintly circumscribed, i to 1.5 mm. diameter, 

 orbicular, convex. Perithecia 4 to 8 in a stroma, globose, mi- 

 nute (200 to 250 //), circinate, necks slender, short, converging, 

 with the minute papilliform ostiola erumpent in a small, black, 

 hemispherical disk, which barely pierces the pustuliform-elevated 

 epidermis, and is closely embraced by it. Asci cylindrical, 80 to 

 no x 8 to 10 //, paraphysate 8-spored. Sporidia uniseriate, 

 elliptical, brown, continuous, 2-nucleate, 12 to 14 x 6 to 7 fj.. 



Distinguished by its very small stroma and perithecia. 



