428 The American Naturalist. [May, 
PUCCINIA SPHAERALCEAE E. & E. I and III. On Sphaeralcea 
angustifolia, Mesilla, New Mexico (Prof. T. D. A. Cockerell). 
I. Aecidium sphaeraleeae E. & E., Bull. Torr. Bot. Club, August, 
1895, p. 364. 
II. Sori hypophyllous, minute, arranged in a circle, 2-4 mm. across, 
confluent, at first covered by the epidermis and pale chestnut color, 
soon naked and dark chestnut color. Teleutospores elliptical or ob- 
long-elliptical, 30-35 x 19-22», nearly hyaline at first, becoming pale 
brown, slightly constricted at the septum, mostly regularly rounded 
and only slightly thickened at the apex, mostly also rounded below but 
often slightly narrowed at the base; epispore smooth. Pedicels stout, 
persistent, reaching 150% long, hyaline: 
Differs from P. malvacearum Mont. in the presence of an Aecidium, 
in its smaller, more obtuse and comparatively shorter teleutospores. , 
AECIDIUM SCLEROTHECIOIDES E. & E. On leaves of Senecio lu- 
gens? Golden, Colorado, May, 1896 (E. Bethel, No. 5). 
Pseudoperidia amphigenous, subepidermal, buried in the substance 
of the leaf in pale yellowish, slightly swollen orbicular spots 2-4 mm. 
diam., slightly prominent in pustules } mm. across, at first closed, then 
irregularly open at the apex revealing the mass of reddish-brown 
spores which are globose 20-27», ovate 20-27 x 15y, or subangular 
from compression ; epispore smooth or nearly so, rather thick. 
Differs from A. selerothecium Speg. in its smaller, inseparable pseu- 
doperidia. 
PHYLLOSTICTA HEUCHERAE E. & E. On leaves of Heuchera cylin- 
drica near Lake Waha, Idaho, June, 1896 (A. A. & E. G. Heller, No. 
3265). 
Perithecia amphigenous, hemispherical, suberumpent, broadly per- 
forated above, 110» diam., crowded in orbicular patches, }-1 cm. diam. 
Sporules abundant, cylindrical, hyaline, 5-6 x 1-1 }y. 
Probably the spermoginal stage of some dothideaceous fungus. 
Asreroma IVAECOLUM E. & E. On stems of Iva xanthiifolia, Den- 
ver, Colorado, September, 1896, E. Bethel, No. 28). 
Fibrils feather-like, appressed, radiating, forming dark brown spots 
2-3 em. across. Perithecia seated on and among the fibrils, depressed- 
hemispherical 110-130» diam., perforated above. Sporules oblong, 
hyaline, 4-6 x 14-2y. 
SPHAEROPSIS CELTIDIS E. & E. On dead limbs of Celtis occidentalis, 
Phillips Co., Kansas, 1896 (Bartholomew, No. 2348). 
Perithecia gregarious or scattered, subseriate, about } mm. diam., 
covered by the epidermis which is slightly raised and barely pierced by 
