200 BOTANICAL GAZETTE [SEPTEMBER 
Greenm., Pachuca, Oct. 5, 1899, no. 3572, Oct. 27, 1903, no. 5244: C. sinuata 
Cerv., Patzcuaro, Oct. 16, 1898, no. 3196: C. amplifolia DC., Oaxaca, Oct. 23, 
1899, no. 3725: C. obtusiloba Rob. & Greenm., Cuernavaca, Sept. 30, 1899, 
no. 3538, Oct. 30, 1903, no. 5299; Patzcuaro, Oct. 17, 1898, no. 3171: Cacalia 
sp., Guadalajara, Sept. 14, 1899, no. 3417; Uruapan, Oct. 11, 1899, nos. 3617, 
3618. 
17. Puccrnta TITHONIAE Diet. and Holw. 
On Tithonia tubaeformis A. Gr., Acambora, Oct. 21, 1899, no. 3143; near 
Tula, Sept. 20, 1898, no. 3197: T. speciosa Hook., Sept. 28, 1898, no. 3119. 
18. Puccinia globulifera, n. sp.—Uredosori hypophyllous, small, 
round, scattered, pulverulent, cinnamon-brown; uredospores globose, 
small, 15-184 in diameter, wall medium thick, 2“, cinnamon- 
brown, evenly and strongly echinulate, pores 2, opposite in the equa- 
tor: teleutosori amphigenous, small, round, scattered, somewhat 
pulverulent, blackish; teleutospores oblong-globose, 22-25 by 24-32#4, 
semiopaque, rounded at both ends, not constricted at the septum, 
wall dark chocolate-brown, 3m thick, closely and evenly aculeate with 
strong conical points; pedicel colorless except near the spore, slender, 
» 5-6 thick, twice the length of the spore or longer, place of 
insertion indefinite, often at the septum. 
On Otopappus epalaceus Pringlei Greenm., Iguala, Nov. 3, 1903, no. 5313: 
This species is widely different from P. Otopappi Syd., which has smooth 
teleutospores of the common obovate-ellipsoid form. 
19. Puccrnta AsTerts Duby. 
On Aster pauciflorus Nutt., City of Mexico, Oct. 10, 1898, no. 3071. 
20. Puccinia Gymnolomiae, n. sp.—Uredosori hypophyllous, 
scattered, small, early naked, pulverulent, bright cinnamon-brown; 
uredospores globoid or obovate-globoid, 20-24 by 21-27#; wall 
golden yellow, rather thin, 1-2, closely and _ strongly echinulate, 
pores 2, opposite, in the equator or often much lower: teleutoson 
hypophyllous, scattered, small, somewhat pulverulent, chestnut 
brown; teleutospores elliptical, 26-30 by 36-454, rounded at both 
ends, which are strongly introverted and concave when dry, much 
constricted at the septum, wall chestnut-brown, smooth, evenly thick, 
3~4#, apex slightly thicker with a very low semiyhaline umbo; pedicel 
colorless, about once length of spore. 
On Gymnolomia subflexuosa Benth. & Hook., Oaxaca, Oct. 17, 1899, 2° 3045 
(type): G. patens brachypoda Rob. & Greenm., Jalapa, Oct. 2, 1898, no. 3145: 
