ra 
JOURNAL OF MYCOLOGY. 
[ V OTj. IV, NO. H, 
long. The two terminal cells are hyaline, the others brown, sometimes 
almost opaque. 
Glceospoiiium ArocitYPTUM, E. & E.—On leaves of Negundo aceroi- 
dcs, Racine, Wis., July, 1887. Sent also from Kansas by Kell. & Swingle, 
September, 1887. Acervuli numerous, minute, mostly hypopliyllous and 
on dead areas of the leaf but scattered more or less over the entire leaf. 
The spores, which are quite variable in size (5—12 x 24—5 /oblong or. 
narrow-elliptical), are discharged so copiously as to whiten.the lower 
surface of the leaf. 
Gloeosporium Rubi, E. & E.—On living leaves of Rubus villosus 
with Cceoma nitens (Scliw.), Starkville, Miss., April 15,1888. Prof. S. M. 
Tracy. Amphigenous on large, indefinite brown spots and areas of the 
leaf, partly overrun by the Cceoma; acervuli numerous, small; conidia 
oblong, continuous, hyaline, 10—16 x 4 /', mostly rounded at the ends and 
straight, but some of them slightly curved and a little narrower at one 
end. 
Gloeosporium Equiseti, E. & E.—On living stems of Equisetnm 
Icevigatum , Braun., Grape Creek, Colo., July, 1887. Rev. C. H. Demetrio, 
No. 125. Acervuli large (1 mm. in diameter), subconfluent, covered by 
the blackened cuticle, which soon whitens out except around the margin; 
spores cylindrical, slightly curved, multi nucleate, 25—35 x3 /', expelled in 
pale amber-colored masses. 
Gloeosporium Opunti^e, E. & E.—On dead Opuntia Brasiliensis , in 
a greenhouse, Perryville, Mo., January, 1886. Rev. C. II. Demetrio. 
Acervuli erumpent, scattered, rather large, at length pale, mass of spores 
amber-colored; spores oblong, obtuse, continuous, 13—18x4—44/'-. After 
the disappearance of the spores the raised and ruptured epidermis resem¬ 
bles somewhat an old Aecidium. 
Cylindrosporium JIeraclei, E. & E.—On leaves of Heraclenm 
lanatum with Phyllachora Heraclei (Fr.), Ogden, Utah, August, 1887. 
Prof. 8. M. Tracy. Spots pallid, then brown, subangular, limited by the 
veinlets but also confluent in irregular, more or less connected brown 
areas, which often extend along the margins of the leaf, turning it brown; 
acervuli innate, large, mostly erumpent above in light-colored masses as 
in Gloeosporium; conidia fasciculate, fusoid-cylindrical, granular and 
nucleate and some of them with the endochrome faintly divided in the 
middle, attenuated towards each end and strongly curved, 50—60 x 3—4/'. 
Cylindrosporium Geranii, E. & E.—On living leaves of Geranium 
Carolinianum, St. Martinsville, La., March, 1888. Rev. A. B. Langlois, 
No. 1157. Spots amphigenous, whitish with a dull reddish border 3—4 
cm. across; acervuli minute, abundant, pale, erumpent on both sides of 
the leaf ; conidia slender, 30—50 x 14—2 /'-, continuous, hyaline, arising 
from short (6—8 /*), subconical basidia (they can hardly be called hyphae). 
The erumpent conidia form a white, pulverulent stratum as in the other 
species. 
