REPORT OF THE STATE BOTANIST I917 47 



4326, June 15, 1910) shows no essential differences from Crypto- 

 spora aculeans. A collection on Rhus c o p a 1 1 i n a 

 (Sylvan Beach, N. Y., C. H. Peck, July) and determined by him 

 as Diaporthe albovelata (B. & C.) Sacc. is also the 

 same. 



Cytospora sassafras E. & E. 



On dead shoots of Sassafras sassafras, Karner, 

 Albany county, N. Y. H. D. House, November 2, 1916. Albany, 

 H. D. House, no. 14.2, August 30, 1913 (duplicate of material upon 

 which Cytospora phomopsis Saccardo is based) . 



The descriptions of C . p h o rh o p s i s and C. sassafras 

 are nearly alike. Saccardo says " 4 to 5 loculigeris," Ellis and Ever- 

 hart say " multilocularibus." The smallest number counted in the 

 Karner material was eight. Saccardo says " intus griseus " while 

 Ellis and Everhart do not mention the interior color. 



The description of Sphaeria albofarcta Schw. 

 (Cytospora albofarcta Starb.) places so much emphasis 

 upon the white interior that it may not be the same as C. sassa- 

 fras E. & E. 



Dendrophoma variabilis Dearness & House, sp. nov. 



Pycnidia 90 to 350 /x in diameter, seated in the xylem, sometimes 

 piercing the cuticle but generally decorticating it, black, shining, 

 subcoriaceous, globose-conic with short ostiolum to lenticular with- 

 elongated or cylindric ostiolum up to .3 mm long. Walls consisting 

 of a single layer of fairly regular, dark-brown polygonal cells, about 

 'i 5 fx in diameter, which are covered within by a stratum of hyaline 

 branched conidiophores, 25 to 250 x 1 to 1.5 /*, seated upon a dilutely 

 colored prosenchymatous, mycelial layer and bearing oblong, hyaline 

 conidia 4.5 to 6 x 1 /a. 



On dead stems of E u p a t o r i u m maculatum L. North 

 Greenbush. C. H. Peck, May. 



Dermatea acerina (Peck) Rehm 

 Griffins, N. Y., on Acer saccharum. C. H. Peck (as 

 Tympanis aceris Peck). Caroga. C. H. Peck (as 

 Scleroderris acerina (Peck) Sacc). Sandlake, on 

 Acer rubrum. C. H. Peck, July. North Elba, on Acer 

 saccharum. C. H. Peck. Old Forge on Acer sac- 

 charum. C. H. Peck, August, 1892. Sandlake on Acer 

 saccharum. C. H. Peck, July, no. 6 S (duplicate of this was 



