536 J. C. ARTHUR 
214. PucciNiA Enceliae Diet. & Holw. (on Carduaceae). 
Simsia Holwayi Blake, Agua Caliente, Dept. Guatemala, Feb. 10, 
1917, II, III, 854. 
Simsia polycephala Benth., Moran, Dept. Amatitlan, Dec. 22, 1916, 
II, 624. 
Simsia sericea (Hemsl.) Blake (Encelia sericea Hemsl.), San Rafael, 
Dept. Guatemala, Jan. 11, 1915, II, 63] Volcan de Agua, Dept. 
Sacatepequez, Jan. 12, 1915, II, 7g\ Antigua, Dept. Sacate- 
pequez, March 2, 1916, II, III, 546". 
A long-cycle rust possessing pycnia, u,redinia, and telia. It 
occurs from southern California southward through Mexico and 
Central America. 
215. PucciNiA DOLORis Speg. (on Carduaceae). 
Erigeron honariensis leiothecus Blake, San Rafael, 7000 feet alt., 
Dept. Guatemala, Jan. 8, 1915, 39. 
Erigeron Deamii Robinson, Solola, 7000 feet alt., Jan. 25, 1915, 
112. 
Erigeron sp., Guatemala City, Jan. 10, 191 7, 686; Huehuetenango, 
Jan. 24, 1917, 77^5. 
A short-cycle species, occurring also in Costa Rica and South 
America. The teliospores are very small. 
216. Puccinia coreopsidis Jacks. & Holw. sp. nov. (on Carduaceae). 
Coreopsis mexicana (DC.) Hemsl., Guatemala City, Jan. i, 191 5, 
III, 5; same, Dec. 21, 1916, ii. III, 613; San Rafael, 7000 feet 
alt.. Dept. Guatemala, Jan. 9, 1915, ii, HI, 52 (type); Solola, 
Jan. 30, 1915, ii, HI, 154; near Santa Maria, Dept. Quezal- 
tenango, Jan. 15, 1917, ii, HI, 725B. 
Uredinia amphigenous, scattered, circular or oval, 0.1-0.3 mm. 
across, early naked, pulverulent, cinnamon-brown, the ruptured epi- 
dermis evident; urediniospores obovoid, 20-24 by 27-32 ^i; wall golden, 
i-i.5At thick, prominently and sparsely echinulate, the pores 2, 
superequatorial. 
Teha amphigenous, scattered, circular or oval, 0.1-0.3 mm. across, 
early naked, pulverulent, dark chestnut-brown, the ruptured epidermis 
conspicuous; tehospores ellipsoid or oblong, 23-29 by 35-45 rounded 
above, rounded or slightly narrowed below, somewhat constricted at 
septum; wall dark chestnut-brown, 3-4 ix thick, slightly thicker above, 
6-7 IX, strongly and sparsely verrucose; pedicel colorless, twice length of 
spore. 
