ROBINSON AND GREENMAN. — GENUS GALEA. 23 



nearly naked peduncle bearing a dense cymose cluster of heads : leaves 

 ovate, acute, subcordate at the base, sharply dentate, roughish-pubescent 

 upon both surfaces, 3-5-nerved and coarsely reticulate-veined, 1 to 3 

 inches long, a third or half as broad, scarcely paler beneath, closely ses- 

 sile : inflorescence and especially the margins of the 3-seriate involucral 

 scales densely glandular-pubescent: heads about 18-flowered: chaff ir- 

 regularly erose, often constricted below the summit: achenes calvous, 

 terete : corolla pubescent. — Collected by E. W. Nelson on the summit of 

 the Sierra Madre near Chilpancingo, Guerrero, altitude 9,000 to 10,200 

 feet, in llower 24 December, 1894. 



-(- -1- Scales of the involucre essentially glabrous. 



7. C. pediincnlaris, IIBK. Erect or decumbent, 1 to 2 feet high, 

 pubescent and usually more or less scabrous : leaves ovate, closely sessile 

 by a broad abrupt or subcordate base, dentate, H to 3 inches long, nearly 

 half as broad : scales of the involucre yellow : pappus present, about two 

 thirds the length of the achenes. — Nov. Gen. & Spec. iv. 295, t. 408. 

 Calydermos pedimcularis, DC. Prodr. v. 669. C. scaber. Lag. Nov. 

 Gen. 25. Calebrachys pedimcularis, Cass. Diet. Sci. Nat. Iv. 277. — 

 South Mexico, Mt. Jorullo, at 3,000 feet, Humboldt <§• Bonplcmd ; Mira- 

 dor, Sartorius ; Chiapas, Ghiesbreght, no. 783, and^. W. Nelson, no. 32G1 ; 

 mountains near Guapimalpatt, Mexico, Schaffncr, no. 35; Chinantla, 

 Liebmann, no. 413 ; Boerego near Orizaba, Bourgeau, no. 3149; Mt. 

 Orizaba, altitude 4,000 feet, Seaton, no. 126, and altitude 10,000 feet by 

 same collector, no. 168; also in Orizaba, Hahn, no. 2692, Bilimek, no. 

 544, and Botteri, nos. 620, 803 ; Jalapa, Th. Coidter, no. 334, in part. 



Var. epapposa, HBK. Closely similar in foliage and habit : achenes 

 wholly destitute of pappus. — HBK. ^(/e DC. Prodr. v. 669. — Near 

 Santa Rosa, ace. to HBK. 1. c. ; also San Luis Potosi, Parry 8^- Palmer, 

 no. 497 ; Las Canoas in the same state, Pringle, no. 3672 ; Valley of 

 Mexico near the Santa Fe, Bourgeau, no. 718 ; Jalapa, Th. Coulter, no. 

 334, in part, and near Reyes, Oaxaca, altitude 6,700 to 10,000 feet, E. 

 W. Nelson ; also Mexico without locality, Th. Coulter, no. 250, in part 

 (the other part of the same number being a Eupaforium) ; fl. August to 

 October. 



Var. longifolia, (Lag.) Gray. Leaves lanceolate or lance-oblong, 

 opposite or ternate, relatively much narrower and more elongated ; the 

 lower 3 to 6 inches long: scales of the involucre yellow : pappus none. 

 — Proc. Am. Acad. xxii. 430, as to syn. Calydermos longifoUus, Lag. and 

 PI. Hartw. Calydermos scaler, var. Benth. PI. Hartw. 346. — Bolanos, 

 Hartweg, no. 122, at least as to long-leaved specimens. 



