New species of Uredineae—VIII* 
JOSEPH CHARLES ARTHUR 
In continuing the monographic work on the rusts for the North 
American Flora it is found that apparently the following species 
have not been described. In order to place these species on record 
and to add such incidental information as may be at hand a brief 
account of the several forms is here presented. 
Puccinia fidelis sp. nov. 
O. Pycnia hypophyllous, grouped among the aecia, prominent, 
large, 112-144 broad by 65u high, with compact ostiolar fila- 
ments, reaching as much higher 
I. Aecia hypophyllous and caulicolous, scattered over the 
plant from a diffused mycelium, causing some hypertrophy and 
Set de. chiefly on the woody tissues and hence often in rows 
along the veins, bullate, large, 0.8-1.3 mm. across, dehiscent by 
irregular slits, overarching epidermis reddish and prominent; 
peridium wanting; aeciospores globoid, usually 23-26u; wall 
nearly or quite colorless, appearing thick, 2-34, coarsely verrucose. | 
Uredinia hypophyllous, scattered, round, small, dark 
cinnamon-brown; urediniospores globoid, usually 23-254 in 
diameter; wall cinnamon-brown, rather thin, finely echinulate, 
pores usually inconspicuous, 2 near the hilum. 
III. Telia hypophyllous, scattered, round, small, very pale 
brownish, cinereous by germination; teliospores oblanceolate or 
fusiform, 17-19 by 50-67y, narrowed or obtuse at both ends, upper 
cell usually shorter and somewhat inverted topshaped; wall nearly 
or quite colorless, smooth, uniformly thin, I; pedicel short, 
fragile. 
On Hyptis stellulata Benth., hills near Guadalajara, Mexico, 
July 21, 1893, C. G. Pringle. The host of this rust was deter- 
mined at the Gray Herbarium a short time ago. Through the 
kindness of Mr. A. B. Seymour the very ample original collection 
was placed at my disposal for study, and all stages of this charac- 
* New species of Uredineae—I-VII. Bull. Torrey Club 28: 661-666. 1901; 
29: 227-231. 1902; 31: 1-8. 1904; 33: 27-34. 1906; 33: 513-522. 1906; 34: 583-592. 
1907; 37: 569-580. Igro. 
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