168 PROCEEDINGS OF THE ACADEMY OF [1893. 



Cylindrosporium caryigenum E. & E. N. A. F., 2451. 



On living leaves of Carya amara, London, Canada. (Dearness.) 

 Hypophyllous, spots indefinite, pale at first, finally brownish and 



visible on both sides of the leaf. Acervuli, minute, numerous, pale. 



Sporules erumpent below, cylindrical, curved, with a row of nuclei,. 



25-40 x 3,u. 



In the early stage of growth, this has the aspect of a Ramularia. 



Marsonia rhabdospora E. & E. 



On leaves of Populus grandidentata, Newfield, N. J. Sept.-Oct. r 

 1892. 



Spots amphigenous, numerous, subangular, 1-4 mm. diam., with 

 a cinereous- white center and definite, narrow, dark margin, sur- 

 rounded with a yellow aureola. Acervuli hypophyllous, flesh 

 colored, erumpent, often seated around the margin of the spot with 

 one or more in the center. Conidia cylindrical, nearly straight, 

 uniseptate, 20-30 x 2J,u, ends obtuse, much resembling the sporules 

 of Septoria populi Desm. which is quite different from this, having 

 true perithecia which are also epiphyllous and nearly black. 



The spots in our fungus are at first minute and brownish-black, 

 but even then surrounded by the yellow aureola. 



Coryneum cornicolum E. & E. 



On the inner surface of dead bark of Comus alternifolia, London, 

 Canada. June, 1892. (Dearness, No. 1,892.) 



Acervuli erumpent, various, tubercular, pulvinate or convex, 

 black, punctiform or 1 mm. or more in diam., and subconfluent, 

 appearing much like the masses of erumpent spores of some Melan- 

 conium. Conidia vermiform-fusoid, 6-8-septate, the end cells 

 hyaline, the others brown, mostly curved, 35-45 x 7-8//, on basidia 

 about half as long or even less. 



* * * * * 



HYPHOMYCETE^. 



Botrytis pannosa E. & E. 



On rotten maple, Seattle, Washington. March, 1892. (Miss 

 Parker, No. 60.) 



Hyphse effused and interwoven, brown, subcontinuous, and sub- 

 oppositely branched, the ends of the branches mostly a little swollen 

 and spiculiferous, bearing the abundant, ovate, hyaline conidia, 5- 

 6 x 3-3i/Jt. 



The tufts of hyphse form, an olive-brown, rather thick, loosely 

 felted layer several centimeters in extent. 



This is B.fairmani E. & E. in Herb. 



