OMITTED DIAGNOSES. 
67 
cylindraceis, vel clavulatus, uniseptatis, utrinque subattenuatis, 
pallide fuscis, 12-16x5-6 p. 
On Artemisia maritima . Alghero. ( Dr . Marcucci.) 
Cladosporium pelliculosum, Berk, fy Curt, in Kerb. 
Scarcely appears to differ from Cladosporium effusum 1 B. & C., 
and does not seem to have been described. 
On leaves of Polygonum punctatum, Lobelia, etc. S. Carolina. 
Cladosporium subnodosum, CJce. in Rav. Amer. Ex. 294. 
Epiphyllum. Casspitulis orbicularibus (circa 1 mm.), atro- 
olivaceis, compactis. Hyphis flexuosis, crassiusculis, fuscis, 
septatis, ad septis nodulosis, ad apicem, hyalino-attenuatis ; 
conidiis ellipticis, utrinque rotundatis, 1-3 septatis, olivaceis, minu- 
tissime granulato-asperatis, 15-25 x 9-10 p. 
On leaves of Spinacia. S. Carolina. 
Probably Heterosporium. 
Ceratophorum subulatum, CJce. Sf Ellis. = Cluster osp or ium subula - 
tum, Cooke & Ellis. 
Effusum, atrum. Hyphis repentibus, ramosis, parcis, septatis, 
conidiis majusculis, rectis, obclavatis, 5-7 septatis, nucleatis, fuli- 
gineis, apice in cuspidem longam, hyalinam, continuam desinenti- 
bus, 70-100 x 15 p, cum cuspidem 180 /x long. 
On bark of Liquidambar and Castanea. S. Carolina and New 
Jersey. 
Helminthosporium avenaceum, Curtis Kerb. 
Effusum, atrum, tenue velutinum. Hyphis erectis, crassius- 
culis, septatis, subopacis, conidiis cylindraceis, vel subfusoideis, 
utrinque rotundatis, 4-5 septatis, pallide melleis 75-85 X 15 p. 
On straw. United States. 
Helminthosporium collabendum, Cooke. 
Effusum, indeterminatum, atrum. Hyphis flexuosis, septatis, 
hinc illic breviter furcatis, fuscis ; conidiis fusiformibus triseptatis 
(rarius quadriseptatis) aureo-fulvis, 60-70x 12-14 p. Episporio 
tenui, collabendo. 
On bark. S. Carolina. 
Helminthosporium gramineum, Rabh. Kerb. Myc. 332. 
Tenuissime effusum. Hyphis brevibus, subflexuosis, pallide 
fuscis. Conidiis solitariis, elongato-cylindraceis, 3-6 septatis. 
On fading leaves of Hordeum vulgare. Poppelsdorf. 
Allied to H. gracilis, Wallr., but differing in the conidia being 
solitary and elongated-cylindrical, 3-6 septate. 
Helminthosporium minimum, Cooke. 
Tenue effusum, velutinum, atrum. Hyphis erectis, tenuibus, 
fuscis (vix 100 p longis excedentibus). Conidiis fusiformibus, 
utrinque obtusis, triseptatis, hyalinis, 12-14x3-4 p. 
On decorticated branches. Hereford. 
