NEW LITERATURE. 



15 



to the axis of the spore, wh.ch is thus made to consist of more than one 

 row of cells. It somewhat resembles P. triarticulata, B. & C, which 

 occurs on Elymus, and which has 3-celled spores ; but these are longer 

 and differently shaped. 



PucciNiA Fetalostemonis, Farlow, in Utt.—JJredo and teleuto- 

 spores on Fetalostemon. II. Sori round, brown, surrounded by the rup- 

 tured epidermis, which is elevated so as to form a false-peridium. Spores 

 pale brown, ovoid, nearly smooth or somewhat granular on the surface. 

 Average size 20 x 22 /^-. III. Sori similar to those containing the uredo 

 spores, black. Spores medium brown, broadly ellipsoidal, slightly con- 

 stricted, thin-walled, wivhout apical thickening, surrounded by a smooth 

 gelatinous sheath ; average 20 x 33 /-'-. The species is related to P. amor- 

 phse, Curt., but readily distinguished by the paler and more transparent 

 teleutospores, and the thinner, smooth envelope. Pale-amber paraphyses, 

 frequently hooked at the tip, accompany both uredo and teleutospores. 



PucciNiA Zygadeni, Trclease.— Teleutospores on Zygaclenus glaucus, 

 ^utt. Sori small, rounded; on both sides of the leaf. Spores amber- 

 brown, darker at the apex, on thin-walled, colorless pedicels ; oblong or 

 sometimes clavate; but slightly constricted. Apex thickened, usually 

 rounded or truncate, rarely acute, 16—20 x 33—56 /J- ; commonly about 

 17 X 43 This resembles a specimen in the Curtis herbarium, on Ami- 

 anthemum, which is labelled P. asphodeli, Duby. "It corresponds closely 

 to a specimen from Trance, bearing the same name, but evidently incor- 

 rectly named, as other specimens from Prance and Italy, with the same 

 name, are quite different." (Farlow, in litt.) 



^ciDiUM DiCENTR^, Trelease.— On leaves of Dicentra cucullaria, 

 DC, in company with Peronospora Corydalis^ DeBary. Hypophyllous, 

 scattered. Spots none. Peridia short, pale yellow, irregularly torn or 

 finely, many-lobed, .3 mm, in diameter. Peridial cells granulated, polygo- 

 nal, more or less isodiametric, averaging 18 x 15 Spores deep orange, 

 thin-walled, smooth, nearly spherical or somewhat polygonal; 13x20/^-, 

 usually about 16 ; wall colorless. A beautiful species collecied by Mr. 

 Pammel in May, 1884. The secidia are accompanied by small violet or 

 brown spermogonia, like those of A. punctatum. 



^ciDiUM Pammelii, Trelease.— On leaves of BuphorUa corollata, L. 

 Spots brown, little, if at all thickened, slightly pustulate, with a central 

 cluster of a few spermogonia. Cluster cups usually hypophyllous, concen- 

 trically arranged, rarely a few, epiphyllous. Peridium short, whitish, bor- 

 der narrow, about 10-lobed. Peridial cells colorless, rugose, usually nearly 

 isodiametric, 20—25 P-. Spots red-orange, polygonal, isodiametric or com- 

 monly some what elongated, 20—25 !->■. The spots are generally orbicular, 

 or elliptical with the longer axis parallel to the midrib. When the sperm- 

 ogonia appear near the margin of the leaf, or near the midrib, the spot 

 naturally develops in but one direction. The species differs from the 

 secidium of Uromyces Euphorhice, C. & P. in the regular arrangement of 

 the cluster cups on round spots, and from the other secidia occurring on 

 this genus in not deforming the host plant. 



