Part 2, 1907] COLEOSPORIACEAE 95 
I. Aecia from a limited mycelium, amphigenous, bullate, tongue-shaped, 1-2 mm. 
long, 0.7-1 mm. high, whitish ; peridium rupturing irregularly, fragile, white, cells over- 
lapping, outer and inner walls of same thickness, 3-44, outer smooth, inner moderately 
verrucose ; aeciospores broadly ellipsoid, 17-24 by 28-36; wall colorless, thick, 3-4, 
densely verrucose with prominent elongate papillae. 
ON PINACEAE : 
Pinus sylvestris I,., Europe; not yet found in America. 
I. Uredinia hypophyllous, thickly scattered, about 0.5 mm. across, early naked, bright 
orange-yellow fading to pale-yellow, ruptured epidermis evident ; urediniospores elliptical- 
globoid or obovate-globoid, 17-21 by 20-27; wall thin, 1-1.54, evenly but not densely 
verrucose, with low papillae. 
III. Telia hypophyllous, scattered, often confluent, small, 0.3 mm. across, brilliant 
orange-yellow fading to pale orange-yellow ; teliospores with wall swelling 15-254 thick 
above; contents orange-yellow fading to pale yellow, clavate or clavate-oblong, 16-20 by 
60-83, rounded at both ends, or narrowed below. 
On CARDUACEAE: 
Senecio vulgaris I,., Rhode Island. 
TYPE LOCALITY : Europe, on Senecio sylvatica. 
DISTRIBUTION: Rhode Island, probably introduced ; also in Europe. 
2. GALLOWAYA Arth. Résult. Sci. Congr. Bot. 
Vienne 336. 1906. 
Cycle of development includes only telia (and possibly pycnia). Telia subepidermal. 
Pycnia unknown (possibly not formed). 
Telia erumpent, prominent, gelatinous, somewhat indefinite, usually oblong. Telio- 
spores sessile, one-celled; wall smooth, colorless, thickened and gelatinous at apex. 
Type species, Coleosporium Pini Gall. (on Pinus inops). 
1. Gallowaya Pini (Gall.) Arth. Résult. Sci. Congr. Bot. 
Vienne 336. 1906. 
Coleosporium Pint Gall. Jour. Myc. 7: 44. 1891. 
O. Pycnia unknown, probably wanting. 
III. Telia amphigenous, on yellow spots, usually near the tips of the leaves, long cov- 
ered by the epidermis, 1-5 mm. long, or when confluent up to 10 mm. or more, reddish- 
orange fading to pale-yellow or dirty-white, ruptured epidermis inconspicuous; teliospores 
with walls swelling 30-50 above, and soon disappearing upon exposure; contents orange- 
yellow fading to nearly colorless, clavate, slender, 13-20 by 60-1004, acute or rounded 
above, much narrowed below, sides wavy or irregular. 
ON PINACEAE : : . a : , 
Pinus virginiana Mill. (P. inops Ait.), District of Columbia, Maryland, North Carolina, 
Tennessee, Virginia. ' ; 
TYPE LOCALITY : Washington, D. C., on Pinus tnops. ; 
DISTRIBUTION : Maryland to Tennessee, nearly throughout the region of the host. 
ILLUSTRATION : Bot. Gaz. 22: pl. 22, 23. _ 
ExsiccaT1: Seym. & Earle, Econ. Fungi 222, 
