27 



Oct., 1880. 



J 



Forming thin white, suborbicular or subconfluent patches 1-8' 

 1-4 across, so that the bark appears as if splashed with white-wash. 

 Sporidia oblong, about .00015' long. Remarkable for its unusual 

 place of growth. 



Dendryphium Harknessii, Ellis.— Nigro-olivaceum, cespitosum; 

 hyphis erectis, superne ramosis; conidiis cylindraceis, 3—6 septatis. 



On bark of a cedar log in wet woods, Newfield, N. J., Oct., 1880. 



Tufts nearly black when fresh, olivaceous when dry; fertile 

 threads sparingly branched above, and bearing at their tips 3-5 con- 

 catenate, cylindric, 3-6-septate conidia, .0012'— .ooi5'x.ooo3'. 



D 



growth. 



Var, LEPTALEUM, found at Northampton, Mass., by Dr. Hark- 

 ness, on bark of grape-vine, differs in its more dwarfish habit and 

 smaller conidia, which are generally only 3-septate. 



Helicosporium thysanophorum, E. & H. Cinereum, dense 

 cespitosum; conidiis thysanoideis spiris 8-10 convolutis. 



On the pitchy bark of an old pine log. Newfield, N. T., Oct., 

 1880. 10 > J . , 



Cinereous, densely cespitose, tufts about the size of a large 

 mustard-seed, sometimes effused, conidia cylindric; open at each 

 end, and consisting of 8-10 coils, .001' long by about half as wide. 



The fertile threads, which arise from a brown, branching, rather 

 sparing, creeping mycelium, are very short, nearly transparent and 

 coiled upon themselves above so as to form the conidia, which re- 

 semble coils of rope or curls. Sometimes the erect thread appears 

 to divide above and produce two coils. 



FusARiUM ScHWEiNiTzii, E. & H. Tuberculifomie, albo-fuscum, 



superne leviter concavum; conidiis oblongis, obtusis, subcurvatis. 



In cracks of the bark of a dead grape vine. Newfield, N. J., 

 Oct., 1880. 



Tuberculiform or substipitate, discoid above, dark cinerous with 

 the exception of the pulverulent pallid disk; conidia oblong or clav- 

 ate-oblong, obtuse and generally slightly curved; borne on the tips of 

 compacted threads, which form the body of the fungus. Allied to 

 Fusarium alburn^ Sacc. 



Cercospora Liriodendri, E. & H. — Hyphis fasciculatis, brev- 

 ibus; conidiis suboblongis, uniseptatis, hyalinis. 



On leaves of Liriodendron Tiilipifera, Vineland, N, J., Oct., 

 1880. ^ 



Hypophyllous, seated on small (1-16' diameter) brown spots 

 bounded by the veinlets of the leaf; fertile threads fasciculate, short, 

 sparingly septate and bearing at their tips the irregularly-oblong uni- 

 sepcate, hyaline, .ooo8'x.ooo2' conidia. 



Cercospora Magnoliae, E, & H. — Hypophylla, macuHspuncti- 

 formibus ; amphigenis ; hyphis fasciculatis, atris, septatis; conidiis 

 clavatis. 



On living leaves of Magnolia glauca. Newfield, N. J., Nov.* 

 1880. 



