BLAKE.— SPECIES HERETOFORE REFERRED TO LEPTOSYNE. 337 
O. Hoffm. in Engler & Prantl, Nat. Pfl. iv. Ab. 5. 243 (1890) (excluding 
Epilepis, Coreocarpus, and Acoma).— Twelve species, ranging from 
California to Guatemala, chiefly Mexican. 
Sect. 1. Electra (DC.) Blake, n. comb. Suffruticose, with oppo- 
site oval to lanceolate coriaceous sometimes ternately parted leaves. 
Heads solitary or paniculate-corymbose, radiate. Outer involucral 
scales about 5, oblong; inner about 8, longer, oval-oblong. Rays 
about 5, 2-3-dentate, oblong to elliptic, fertile, the tube pubes- 
cent; disk-flowers with pubescent tube shorter than the cylindric- 
funnelform throat, and (4—)5-toothed limb; annulus none. Style- 
branches with subulate hispid appendages. Achenes strongly ob- 
compressed, glabrous, margined, the outer broad, the inner much 
narrower, all pappusless or the inner rarely witha pair of smooth slen- 
der awns.— Electra DC. Prod. v. 630. (1836); Gray, Pl. Wright. i. 
110, footnote (1852).— Three species of Mexico and Central America. 
* Heads numerous in ternate corymbose panicles. 
1. C. mextcana (DC.) Hemsl. Shrubby, nearly glabrous, 0.6- 
2m. high; leaves lanceolate to lance-ovate, acute to acuminate at 
both ends, sharply serrate, often trifoliately cut nearly to the midrib, 
glabrate on both sides or retaining a sparse pubescence chiefly along 
the veins, the blades 4-11 cm. long, on narrowly margined petioles 
1-2.5 cm, long; heads 1-1.3 em. high, 2.54 em. in diameter including 
rays; achenes 6-9 mm. long.— Biol. Centr.-Am. Bot. ii. 196 (1881). 
Electra mexicana DC. 1. ¢. Electra Galeottii Gray, 1. ec. Coreopsis 
Galeotti Hemsl. |. c. 195.— In an authentic example of E. mexicana 
in the Gray Herbarium, collected by Mendez, the tube of the ray is 
distinctly hirtellous, and the narrowly lanceolate leaves still show a 
slight appressed pubescence beneath, while one of the younger heads 
is also sparingly hairy at the base, so that the characters relied upon 
by Dr. Gray in separating FE. Galeottii entirely fail to hold. Galeotti 
2086, represented by a fragment in the Gray Herbarium, as well as the 
Baites specimens cited in the original description, is practically gla- 
brous, while Galeotti 2087 somewhat approaches the next form. 
Guanasvato: “cirea Villalpando ultra Guanaxuato,” Mendez 
(coryPE in Gray Herb.); Guanajuato, 1895, Dugés 472; near Cader- 
eyta, 22 Aug. 1905, Rose 9717; Hipaxco: sunny rocky slopes, Pa- 
chuca, Sept. 1905, Purpus 1550; clay banks, Dublan, alt. 2070 m., 
15 Oct. 1902, Pringle 9895; Sierra de Pachuca, 2900 m., 14 Sept. 
1899, ge S18 ; near Metepic Station, 2530 m., 20 Sept. 1904, 
Pringle 1 ; Mexico: barranca above Santa Fe, 2600 m., 1 Sept. 
