546 NORTH AMERICAN FLORA [VolumE 7 
below, not constricted at septum; wall golden- or chestnut-brown, usually thick, 1.5-3.5 p, 
thickened above, 5-10 y, often breaking into few irregular points in germinating, smooth; 
pedicel colorless, 75-120 «4 long, or shorter. 
ON MALvAcEAE: 
Althaea rosea (I,.) Cav., New Mexico; Mexico (state). 
asi hederacea (Dougl.) Greene (Sida hederacea Torr.), Arizona, California, New Mexico, 
‘exas, : 
Disella lepidota (A. Gray) Greene (Sida lepidota A. Gray), New Mexico, Texas. 
Sphaeralcea Orcuttii Rose, California. 
Sphaeralcea sp., Arizona. 
TYPE LocaLity: Texas, on Sida lepidota. 
DisrRIBuTION: Western Texas to central California, and southward to southern Mexico. 
ILLustRaTIon: Holway, N. Am. Ured. 1: pl. 27, f. 96a, b. 
ExsiccaTt: Barth. N. Am. Ured. 2451; Garrett, Fungi Utah. 164. 
53. Micropuccinia Anodae (Sydow) Arthur & Jackson. 
Puccinia Anodae Sydow, Monog. Ured. 1: 475. 1903. 
O. Pycnia unknown. 
III. Telia hypophyllous, small, round, 0.5-0.8 mm. across, scattered, or gregarious and 
confluent in small groups 1-2 mm. across, early naked, pulvinate, cinnamon- or chestnut- 
brown, becoming cinereous from germination, ruptured epidermis not conspicuous; teliospores 
ellipsoid or obovate, 18-22 by 32-40 u, rounded above, rounded or narrowed below, not con- 
stricted at septum; wall golden-brown, 2-3 u thick, thickened above, 7—9 », smooth; pedicel 
colorless, persistent, as long as spore. 
ON MaLvacEAg: 
Anoda acerifolia DC., Veracruz. 
Anoda hastata Cav., Costa Rica; Guatemala. 
TYPE LOCALITY: San Miguel Uspantan, Guatemala, on Anoda hastata. 
DistrruTion: Southern Mexico through Central America; also in South America. 
ILLUSTRATION: Sydow, Monog. Ured. I: $l. 28, f. 391. 
Exsiccati: Sydow, Ured. 2609. 
54. Micropuccinia exilis (Sydow) Arthur & Jackson. 
Puccinia exilis Sydow, Monog. Ured. 1: 481. 1903. 
O. Pycnia unknown. 
III. Telia hypophyllous, small, 0.5-0.8 mm. in diameter, scattered, or in gregarious 
and confluent groups 1-3 mm. across, compact, pulvinate, cinnamon-brown, becoming cinere- 
ous from germination; teliospores oblorig or oblong-clavate, 13-16 by 26-35 », rounnded 
above, rounded or narrowed below, not or slightly constricted at septum; wall yellowish, 
thin, 1-2 », not or slightly thickened above, 3-4 », the thickening disappearing upon germina- 
tion, smooth; pedicel colorless, fragile, twice to thrice length of spore. 
On MALVACEAE: 
Pavonia rosea Schlecht., Guatemala. 
TvPH LOCALITY: Brazil, on Pavonia leucantha. 
DISTRIBUTION: Quirigua, Guatemala; also in South America. 
ILLUSTRATION: Sydow, Monog. Ured. 1: pl. 29, f. 396. 
55. Micropuccinia filopes (Arth. & Holway) Arthur & Jackson. 
Puccinia filopes Arth. & Holway; Arth. Mycologia 10: 131. 1918. 
O. Pycnia unknown. 
Ill. Telia, chiefly hypophyllous, crowded or confluent in circular areas 2-5 mm. across, 
on larger discolored spots, round, 0.1-0.3 mm. in diameter, early naked, pulvinate, golden- 
brown becoming cinereous by germination, ruptured epidermis inconspicuous; teliospores 
oblong-obovoid, 13-16 by 30-40», rounded above, somewhat narrowed below, slightly con- 
stricted at septum; wall pale golden-brown, sometimes lighter below, 1-1.5 u thick, slightly 
or not thickened at apex, smooth; pedicel colorless, once to twice length of spore, slender, 7-9 
# in diameter next to spore, tapering downward. 
