602 NORTH AMERICAN FLORA [VoLumE 7 
flattened laterally; wall cinnamon-brown, rather thick, 1.5-2 4, moderately and strongly 
echinulate, the pores 2, opposite and equatorial. , 
II. Telia amphigenous, chiefly epiphyllous, scattered, round, 0.5-1 mm. across, some- 
what tardily naked, becoming pulverulent, chocolate-brown, ruptured epidermis noticeable; 
teliospores ellipsoid, 26-32 by 40-48 u, rounded at both ends, slightly or not constricted at 
septum; wall 4-6 » thick, of two rather distinct layers, the inner wall dark chestnut-brown, 
the outer wall golden-yellow, closely and moderately verrucose, thickened to 7-10 pw at apex 
and over pore of lower cell which is usually near the pedicel; pedicel colorless, fragile, 6-8 » 
in diameter at point of attachment to the spore, often attached obliquely, once to twice length 
of spore, tapering and somewhat rugose below. 
On CaRDUACEAE: 
Lostephane heterophylla Benth., Morelos. 
TYPE LocaLiry: Cuernavaca, Mexico, on J. ostephane heterophylla, 
DisTRIBUTION: Known only from the type locality. 
Exsiccati: Barth. Fungi Columb. 3849; Barth. N. Am. Ured. 455. 
37. Puccinia Porophylli P. Henn. Hedwigia Beéibl. 39: 153. 1900. 
II. Uredinia chiefly hypophyllous, scattered, round or oval, 0.2-0.5 mm. across, tardily 
naked, somewhat pulverulent, pale cinnamon-brown, ruptured epidermis noticeable; uredinio- 
spores globoid or broadly ellipsoid, 18-22 by 20~26 u; wall pale golden-brown or nearly color- 
less, thin, 1.5—-2 uw, very finely and closely verrucose-echinulate, the pores obscure, apparently 
6-8, scattered. 
Ill. Telia chiefly hypophyllous and caulicolous, round or oval, small, 0.2-1 mm. across, 
tardily naked, pulvinate, blackish, ruptured epidermis conspicuous; teliospores ellipsoid or 
obovoid, 22-30 by 32-45 uw, obtuse or rounded at both ends, slightly or not constricted at 
septum; wall chocolate-brown, thick, 2.5-3.5 u, slightly thicker above, 4-7 u, very obscurely 
verrucose-rugose when dry, appearing smooth when wet; pedicel colorless, slightly tinted 
next to spore, once to thrice length of spore. 
On CaARDUACEAE: 
Porophyllum macrocephalum DC., Hidalgo, Morelos. 
Porophyllum sp., Jalisco. 
TYPE LOCALITY: Caracas, Venezuela, on Porophyllum ellipticum. 
Distripvution: Southern Mexico; also in northern South America. 
Exsiccati: Barth. N. Am. Ured. 1168. 
38. Puccinia tageticola Dietel & Holway; Holway, Bot. Gaz. 
24: 26. 1897. 
II. Uredinia amphigenous and caulicolous, round or oval, 0.2-1 mm. across, somewhat 
tardily naked, pulverulent, cinnamon-brown, ruptured epidermis usually conspicuous; wre- 
diniospores ellipsoid or obovate, somewhat flattened laterally, 16-24 by 26-30 »; wall golden- 
brown, thin, 1.5~2 », moderately and rather finely echinulate, the pores 2, equatorial. 
Ill. Telia amphigenous and caulicolous, round or elongate, 0.5-5 mm. long, tardily 
naked, pulvinate, blackish, ruptured epidermis conspicuous; teliospores ellipsoid or oblong, 
26-34 by 40-50 », occasionally narrower and longer in caulicolous sori, rounded at both ends, 
slightly or not constricted at septum; wall chestnut-brown, thick, 3-5 y, thicker above, 7~10 yp, 
with a broad sub-hyaline umbo; pedicel colorless, firm, usually thick-walled, twice or thrice 
length of spore. 
On CARDUACEAE:! 
Tagetes erecta I,., Porto Rico. : 
Tagetes filifolia Lag., Jalisco, Morelos; Costa Rica. 
Tagetes lucida Cav., Michoacan, Morelos. 
Tagetes micrantha Cav., Mexico (state). 
Tagetes microglossa Benth., Costa Rica. : 
Tagetes patula 1. (T. tenutfolia H.B.K.), Aguascalientes, Jalisco, Mexico (state), Oaxaca; 
Porto Rico. 
TYPE LOCALITY: Guadalajara, Mexico, on Tagetes tenuifolia. 
DisTRIBUTION: Central Mexico southward through Central America, and in Porto Rico; also 
in South America. 
Exsiccati: Barth. N. Am. Ured. 64, 370, 1374; Sydow, Ured. 1987. 
