588 NORTH AMERICAN FLORA [VoLUME 7 
evident; teliospores broadly ellipsoid or globoid, 21-23 by 23-29 u, rounded at both ends; 
wall cinnamon-brown, rather thick, 2.5—3 y, thickened at apex into a broad paler umbo, 
6-9 w, smooth; pedicel colorless, once or twice length of spore. 
ON KRAMERIACEAE: 
Krameria parvifolia Benth., Texas. 
Tyre Locality: Denton, Texas, on Krameria parvifolia. 
DistRIBUTION: Known only from the type locality. 
Exsiccati: Barth. N. Am. Ured. 1992. 
4. Uromyces Sabineae Arth. Mycologia 9: 69. 1917. 
II. Uredinia hypophyllous, scattered or somewhat gregarious on slightly reddish, effused 
spots, round, 0.1-0.2 mm. across, soon naked, light cinnamon-brown, pulverulent, ruptured 
epidermis evident; urediniospores globoid or broadly oboyoid, 18-20 by 19-26 uw; wall light- 
yellow, thin, about 1.5 4, moderately echinulate, the pores 3 or occasionally 4, equatorial, 
fairly distinct. 
III. Telia hypophyllous, scattered or somewhat gregarious, pulvinate, round, 0.1-0.3 
mm. across, early naked, blackish-brown, ruptured epidermis evident; teliospores globoid or 
broadly ellipsoid, 20~24 by 22-29 »; wall dark chestnut-brown, moderately thick, 3 y, thicker 
above, 4-7 », moderately verrucose; pedicel colorless, one half to once length of spore. 
On FaBAcCEAE: 
Sabinea punicea Urban, Porto Rico. 
TYPE LOCALITY: Maricao, Rio Grande river, Porto Rico, on Sabinea punicea. 
DiIsTRIBUTION: Known only from the type locality. 
5. Uromyces illotus Arth. & Holway; Arth. Am. Jour. Bot. 5: 
441. 1918. 
II. Uredinia hypophyllous, scattered, round or oval, 0.2-0.5 mm. across, early naked, 
pulverulent, dark cinnamon-brown, ruptured epidermis rather inconspicuous; urediniospores 
obovoid, 16-23 by 24-27 »; wall cinnamon-brown, moderately thick, 1.5 u, moderately echin- 
ulate, the pores 3 or 4, equatorial or sometimes scattered. 
III. Telia hypophyllous, scattered, round, 0.1-0.3 mm. across, early naked, compact, 
dark chocolate-brown, ruptured epidermis rather inconspicuous; teliospores obovoid or ellip- 
soid, 19-21 by 24-31 yu, rounded at apex and base; wall dark chestnut-brown, thick, 
2~2.5 u, thickened at apex to 5 u, closely and finely verrucose; pedicel colorless, once anda 
half times spore-length. 
On FaBAcEAE: 
Mucuna Andreana M. Micheli, Guatemala. 
TYPE LOCALITY: Chinaulta, Guatemala, on Mucuna Andreana. 
DIsTRIBUTION: Known only from the type locality. 
6. Uromyces oaxacanus Dietel & Holway; Holway, Bot. Gaz. 
31: 327. 1901. 
II. Uredinia hypophyllous, scattered, round, 0.1-0.3 mm. in diameter, rather early naked, 
pulverulent, cinnamon-brown, ruptured epidermis incouspicuous; urediniospores broadly 
ellipsoid or obovoid, 18-20 by 21-24 u; wall golden- or cinnamon-brown, 1-1.5 p thick, rather 
closely and finely echinulate, the pores 2, equatorial, rather indistinct. 
III. Telia amphigenous, scattered, round, 0.1-0.3 mm. in diameter, early naked, pulver- 
ulent, chocolate-brown, ruptured epidermis evident; teliospores rather irregularly ellipsoid or 
globoid, 22-27 by 26-32 u, rounded at both ends; wall chestnut-brown, rather thick, about 
3p, thickened at apex, 4-54, unevenly and coarsely verrucose especially at apex; pedicel 
colorless, 35-65 uv long. 
On EUPHORBIACEAE: 
Bivonea urens (L..) Arth. (Jatropha urens L,.), Oaxaca; Guatemala. 
TYPE LOCALITY: Oaxaca, Mexico, on Jatropha urens, 
DISTRIBUTION: Southern Mexico and Guatemala. 
