378 PROCEEDINGS OF THE ACADEMY OF [1894. 



Fusicladium Staticis E. & E. 



On living leaves of Sfatice Limonmrn, dwe May, N, J., Sept. 

 1894 (Commons, No. 2,565). 



Spots orbicular, 2-5 mm. diam., purplish at first, then rubigiuou& 

 with a purplish border, becoming paler in the center and finally sub- 

 deciduous. Hyphse epiphyllous, fiiseiculate, 40-60x4;/, brown, 

 septate, subgeniculate above. Conidia oblong with the ends obtusely 

 pointed, subolivaceous, 1- (exceptionally 2-) septate, 10-16x3-4//. 



The tufts of hyphse are crowded in the central part of the spots. 



Fusicladium Aplectri E. & E. 



On leaves of Aplectrnm hyemrile, Naaman's Creek, Del., Apr. 

 1894 (Commons, No. 2,408). 



Spots irregular, whitish, with a shaded, purple border, 1 (-m. 

 diam. Hyph;e fasciculate, olivaceous, simple, 2-3-septate, 65-75 x 

 5-6", mostly twisted or abruptly bent at the tips, olive-brown. 

 Conidia terminal, elliptical, greenish, granular, continuous at first, 

 becoming 1-septate, 12-15x6-7//. 



Cladosporium aterrimum E. & E. 



On rotten wood, Rockport, Ks., Nov. 1893 (Bartholomew, No. 

 1,256). 



At first densely tufted, tufts soon effused, forming an olive-black, 

 velvety stratum 1 or more cm. in extent. Fertile hyph?e slender, 

 sparingly septate, 100-150x22/', nearly straight, simple. Conidia 

 terminal, at first elliptical, 3-5//. long and continuous, then oblong- 

 cylindrical, uniseptate, 5-7x2^//, ends obtuse. Probably the subi- 

 culum of some Pyrenomycete. 



C. lignatile Schw. is said to have the hyphse very short ( "brevis- 

 simis" ). 



Cercospora (Cercosporella) albomaculans E. & E. 



On leaves of Brasslca eampestris, Berkeley, Cala., Feb. 1894 

 (W. C. Blasdale, No. 201). 



Spots suborbicular, white with a narrow, darker margin, ^.-1 cm. 

 diam. Hyphre amphigenous, tufted, short, 8-12x2;/, hyaline, con- 

 tinuous. Conidia cylindrical, hyaline, straight or slightly curved, 

 of about equal thickness throughout, 40-65 x2-2i/', becoming faintly 

 3-septate. The tufts are very minute. 



Distinguished from the other species on Cruciferce by its large 

 white spots and cylindrical conidia which resemble the sporules of 

 Septoria. 



