1893.] NATURAL SCIENCES OF PHILADELPHIA. 161 



Botryodiplodia acerina B. & E. 



On bark of dead Acer rubrum, London, Canada. June, 1892. 

 (J. Dearness.) 



Perithecia ovate-globose, obtuse and rounded above, Imm. diam., 

 erumpent in densely compacted clusters, 2-3 mm. across and 

 bordered by the upturned epidermis. Sporules elliptical, brown, 

 mostly uniseptate but not constricted, 15-22 x 12-13//.. 



This occurs with Valsa multiplex, and may be its pycnidial stage. 



Camarosporium mali E. & E. 



On decorticated limbs of apple trees, London, Canada. May, 

 1892. (Dearness, No. 1,837.) 



Peritbecia gregarious, erumpent-superficial, subhemispherical, 

 mostly about J mm. diam., becoming smooth and subshining at the 

 apex. Ostiolum papilliform. Sporules variable in sbape and size, 

 from globose to oblong-elliptical or biconical, and 8-16 x 6-10/* 

 (mostly 12-15 x 6-7//. brown, about 3-septate at first, becoming 5- 

 8-septate with one or more of the cells divided by a longitudinal 

 septum. 



This differs from C. robhil.ee in its much more variable sporules 

 and in habit. 



Camarosporium graminicolum E. & E. 



On dead culms of Ammophila arenaria, Long Island, New York. 

 July, 1892. (Smith Ely Jelliffe, M. D.) 



Perithecia innate, minute (i mm.), scattered, appearing as black 

 specks through the slightly raised cuticle. Sporules biconic-ellip- 

 tical, 20-30 x 12-1 5//., 3-7-septate, with one or two longitudinal 

 septa across the middle cells, pale brown, the terminal cells sub- 

 hyaline, resembling the sporidia of Fenestella prineeps Tul. 



Hendersonia alternifoliae E. & E. 



On bark of dead Cornus alternifolia London, Canada. June, 

 1892. (Dearness, No. 1890.) 



Perithecia scattered, small, subcuticular, raising the epidermis 

 into little pustules, with the obtuse apex erumpent but not prom- 

 inent. Sporules oblong-elliptical, hyaline and granular at first, 

 becoming yellow-brown and 3-septate, large 22-30 x 11-12/*. There 

 are also globose sporules 10-15// diam., brownish like the others, 

 and fusoid-falcate, hyaline spores 35-45 x 3,u granular and continu- 

 ous. Whether this is the pycnidial stage of Massaria corni Fckl. 

 we cannot say. 



