1895.] NATURAL, SCIENCES OF PHILADELPHIA. 441 



Stemphylium subradians E. & E. 



On bark of dead limbs of Lonicera involuerata, "Coffee Pot 

 Springs," Colo., Aug., 1894. Alt. 9,500 ft. Prof. C. S. Crandall, 

 No. 93. 



Hyphae decumbent, brown, continuous or faintly septate, 2£-3 ,". 

 diam., radiating from scattered points of attachment to the matrix 

 and forming a loose network. Conidia subglobose, 20-30 //. diam. , 

 composed of globose, brown cells, 5-8;/ diam., and borne on short 

 lateral branches or pedicels, issuing at a right angle from the pros- 

 trate threads. To the naked eye the fungus appears like black, thin, 

 velvety patches indefinitely effused and from 2-10 mm. in extent, 

 often surrounding the limb or twig. 



Stilbomyces n. gen. Fam. Stilbeae. 



Sterile hyphae creeping, scanty, fertile hyphae united in an erect 

 stipe surmounted by a conidiiferous head composed of bundles of 

 rlagelliform, nucleate; conidia. Differs from Stilbum only in its 

 conidia. 



Stilbomyces Berenice E. & E. 



On living bark of Diospyros, Pointe Aux Loups, Acadia Co. , 

 La., Sept., 1894. Langlois, No 2,396 and 2,400. 



Stipe ciiierous-white, 1— 1§ mm. long and about 100// thick, mostly 

 a little curved, slightly attenuated above, and surmounted by a nar- 

 row-elliptical, acute head, a little thicker than the stipe. Conidia 

 rlagelliform, hyaline, about 60," long and 3A-4i >>. thick at the 

 moniliform-nucleate base, constricted between the nuclei, and finally 

 separating into ovate-elliptical, smoky-hyaline joints, 5-7x3-4//, 

 prolonged above into a continuous, hyaline bristle like crest which 

 constitutes about half the length of the conidia. These conidia are 

 united at the base so as to form tufts of 50-100 conidia with their 

 rlagelliform tips spreading out like the bristles of a paint-brush. 

 Fusarium acuminatum E. & E. 



On living steins of Solatium tuberosum, Geneva, N. Y., July, 1895. 

 Prof. S. A. Beach, comm. F. C. Stewart. 



Sporodochia gregarious, minute, white at first, then flesh-colored. 

 Conidia falcate, attenuate-acuminate at each end, 3-5, exceptionally 

 6 septate, not constricted, arising from slightly elongated cells of the 

 proligerous layer, in which respect it differs from the usual type of 

 Fusarium. Quite distinct from F. diplosporum C. & E. , which 

 also occurs on the same host. 



