480 NORTH AMERICAN FLORA [VoLumE 7 
III. Telia hypophyllous, scattered or circinately grouped, sometimes confluent on pale- 
brownish, orbicular spots, round, 0.2-0.6 mm. in diameter, early naked, somewhat pulverulent, 
cinnamon-brown, ruptured epidermis evident; teliospores ellipsoid or obovoid, 21-27 by 32- 
45 yp, rounded above, frequently narrowed below; wall light brownish-yellow or colorless, very 
thin, 1~1.5 » or less, considerably thickened above, 7-20 », smooth; pedicel colorless, about 
one and a half times length of spore, delicate. 
ON CONVOLVULACEAE: 
Jacquemontia nodi flora (Desv.) G. Don, Cuba; Jamaica; Porto Rico; St. Croix. 
Type LOCALITY: Cuba, on Convolulus sp., now determined as J acquemontia nodi flora. 
DISTRIBUTION: West Indies. 
5. Klebahnia dolichospora (Dietel & Holway) Arthur. 
Uromyces dolichosporus Dietel & Holway; Holway, Bot. Gaz. 31: 327. 1901. 
Uromyces Tournefortiae P. Henn. Hedwigia 47: 267. 1908. 
O. Pycnia epiphyllous, few, scattered, inconspicuous, honey-yellow, globoid, 135-160 u 
in diameter by 125-150 » high; ostiolar filaments not extending beyond the ostiole. 
II. Uredinia amphigenous and caulicolous from a diffused mycelium or from scattered 
infections, numerous, subcircinately crowded on brownish, orbicular spots, or evenly distributed 
over large areas, roundish, 0.2-0.6 mm. across, tardily naked, pulverulent, dark cinnamon- 
brown, ruptured epidermis conspicuous; urediniospores obovoid or pyriform, 21-29 by 32— 
42 uw; wall cinnamon-brown, sometimes lighter-colored at apex and base, variable in thickness, 
1.5-3 yp, thickened at apex, 3-7 », sparsely and conspicuously echinulate, the pores 2-4, usually 
3, approximately equatorial or scattered. 
III. Telia amphigenous, scattered or irregularly to circinately crowded, round, 0.2-0.7 
mm. across, early naked, pulvinate, orange-yellow or cinereous by germination, ruptured epi- 
dermis inconspicuous; teliospores fusiform or cylindric, 13-23 by 39-58 yn, frequently narrowed 
above and below; wail colorless, very thin, 1 » or less, not thickened at apex, smooth; pedicel 
colorless, once to twice length of spore, persistent. 
On HELIOTROPIACEAE: 
Tournefortia microphylla Bertero, Porto Rico. 
Tournefortia velutina H.B.K., Oaxaca, 
Tournefortia volubilis L., Cuba. 
E LOCALITY: Oaxaca, Mexico, on Tourneforiia velutina. 
DistrRIBuTioNn: Southern Mexico and the West Indies; also in South America. 
Exsiccatr: Barth. N. Am. Ured. 1286. 
6. Klebahnia pressa (Arth. & Holway) Arthur. 
Uromyces pressus Arth. & Holway; Arth. Mycologia 10:125. 1918. 
O. Pycnia epiphyllous, few, inconspicuous, yellowish-brown, globoid, 112 u in diameter 
by 110 w« high; ostiolar filaments extending but slightly above the ostiole. 
Il. Uredinia amphigenous, gregariotis on discolored spots 1-3 mm. in diameter, oval or 
oblong, 0.2-0.4 mm. long, early naked, pulverulent, yellowish-brown, ruptured epidermis 
conspicuous; urediniospores obovoid or globoid, 23-26 by 27-32 4; wall yellowish or pale 
cinnamon-brown, thick, 2-3.5 4, moderately and rather coarsely echinulate, the pores 3, 
approximately equatorial. 
III. Telia amphigenous, scattered, oval or oblong, 0.2-0.3 mm. long, early naked, pulvi- 
nate, white, ruptured epidermis rather inconspicuous; teliospores oblong-ellipsoid or fusiform- 
ellipsoid, 16-18 by 29-35 w, rounded or somewhat narrowed above, narrowed below; wall 
colorless, very thin, 0.5 4, not thickened at apex, smooth; pedicel colorless, about one-half 
length of spore. 
On CARDUACEAE: 
Vernonia Deppeana Less., Costa Rica; Guatemala. 
TYPE LOCALITY: San José, Costa Rica, on Vernonia Deppeana. 
DISTRIBUTION: Central America; also in South America. 
