branching' of tlie threads reminds one of the sporophores of some of the 
Peronosporew. The general appearance is exactly that of a thin yellow 
Corticium like X. A. F. G57 (“ Gonytrichum fulvum ”), which we now 
think is only an imperfectly developed state of Corticium cervicolor , B. 
& 0., being in fact only the lower sterile stratum of that species. The 
conidia in the Louisiana fungus resemble those of a Monilia in having a 
short appendage resembling the connecting cell between the spores in 
that genus, but we can not make out that the conidia are concatenate, 
the short appendage being rather of the nature of a pedicel. Plate X, 
Figs. 1 aud 2. ’ 
Ramularia BRUNELLiE, n. s. On living leaves of Brunella vulgaris. 
.Racine, Wis., August, 1888. Dr. J. J. Davis, No. 9. Spots large, 
dark brown, more or less distinctly concentrically zoned above, rather 
indefinitely limited, more or less confluent so as often to cover nearly 
the entire leaf. Hyphse hypophyllous, short, 10-15 by 2J//, hyaline, 
mostly toothed above, forming minute white scattered tufts, scarcely 
visible. Conidia oblong-cylindrical, continuous, 10-15 by 1^-3 //. 
Ramularia serotina, n. s. On leaves of Solidago serotina. Lake 
County, Ill., July, 1888. Dr. J. J. Davis, Xo. 39. Spots amphigenous, 
l-5 mm (mostly 2-3 mm ), pale yellow-brown, with a narrow, definite, darker 
margin; sometimes confluent (l cm or more), of somewhat irregular shape, 
but the smaller ones suborbicular. Hyphm amphigenous, fasciculate 
subnodulose, and toothed above, continuous or faintly 1-2-septate, 
hyaline, 25-30 by 3//. Conidia oblong-cylindrical, hyaline, 1-septate, 
15-2S by 3//, subconcatenate. On account of the definite spots and' 
quite constantly 1-septate conidia this is different, from R. virgaurea, 
Tliiim., which pertains to Cercospora , often having the conidia 50-75// 
long. 
Ramularia viburni, n. s. On living leaves of Viburnum lentago. 
Racine, Wis., June, 1888. Dr. J. J. Davis, Xo. 27. Spots amphige¬ 
nous, rusty brown (greenish-brown at first) 4-5//in diameter, suborbic¬ 
ular, with a darker margin. Hyphse amphigenous 12-20 by 24-3//, 
hyaline, tufts erect, simple. Conidia fusoid-cylindrical, slightly curved, 
1-3 septate, 20-40 by 1J-2//, yellowish-hyaline. Resembles R. andro- 
medce , E. & M., but is amphigenous, and the conidia are longer and 
have a greater number of septa. 
Coniosporium oorticale, 7i. s. In bark of maple logs, London, 
Canada. Prof. J. Dearness, Xo. 2. Forms a brownish-black dusty 
stratum between the lamina of the bark. Conidia globose 3-4// in 
diameter or elliptical or ovate-elliptical 44-5 by 3-4//. The globose 
conidia comparatively few. This must come near C. aterrimum , Cda., 
but we think it different, though we have no specimen of that species. 
Fusicladium bre virus, n. s. On leaves of Astragalus hypoglottis. 
Musie Pass, Sangre de Christo Range, Colorado, July, 1888. Demetrio, 
199. Hypophyllous, forming small, scattered or subconfluent mouse- 
colored or smoky olivaceous patches scattered over the lower face of 
the leaf. Hyphae, consisting of collections of subovate, brownish cells 
