ROBINSON. — MEXICAN PLANTS. 331 



E. baditjm, Klatt, Bull. Soc. Bot. Belg. xxxi. 186 (1892), a species 

 based upon a Costa Rican type, is well matched by Mr. E. W. Nelson's 

 no. 2251 collected near Chilpancingo, Guerrero, Mexico. 



E. Bertholdii, Sch. Bip., var. stenophyllum. Leaves lance- 

 oblong, attenuate at each end, 9 cm. long, 2 to 2.4 cm. broad, entire. — - 

 Collected by C. G. Pringle in canons near Guadalajara, Jalisco, 8 Decem- 

 ber, 1888, no. 1831. A shrub 2 m. high. The typical form of north- 

 western Mexico has ovate serrulate leaves. 



E. brickettoides, Klatt, Jahrb. Iiamb. Wissensch. Anstalten, ix., pt. 2, 

 1892, 124, is a Trixis ! 



E. capnoresbium. Shrub with slender opposite terete glabrate 

 branches; branchlets, petioles, and pedicels sordid glandular-tomentose : 

 leaves opposite, elliptic-oblong, acute at each end, impuuetate, more or 

 less serrate from the middle, to the apex, not re volute at the base, pubes- 

 cent above with short rather sparse hairs, paler and pubescent especially 

 on the midnerve and pinnate veins beneath, 3.5 cm. long, 1.6 cm. broad; 

 petiole 6 mm. long: heads (1 cm. in length) in trichotomous round- 

 topped fastigiate corymbs, slender-pedicelled, about 10-flowered; iuvo- 

 lucral scales lance-oblong, acutish, purple-tinged, glandular-puberulent 

 dorsally, one or two of the outer lance-linear and shorter than the rest: 

 corollas 6 mm. long, purplish : acheues prismatic, 3 mm. long, puberu- 

 ] en t. — Collected by C. G. Pringle in forests at the foot of the Sierra de 

 Ajusco in the Federal District, Mexico, 26 June, 1897, no. 7438, type 

 (in herb. Gray), and earlier by Schaffner on Mt. Popocatapetl, altitude 

 2,700 m., September, 1855, also by Bourgeau in a forest of the Desert 

 Viego near City of Mexico, 1865-66, no. 844. This species has the 

 inflorescence and much the habit of E. micranthum, Less., which, how- 

 ever, has the leaves finely, but distinctly punctate on both surfaces and 

 revolute at the base. See remarks under E. glaucum, below. 



E. cardiophyllum. Stout, tall herb, short-pubescent or tomentulose 

 and scabrous throughout ; stem terete, striate, fistulose : leaves opposite, 

 ovate-orbicular, short-acuminate, cordate with an open sinus, crenate, 1 

 to 1.6 dm. long, about as broad; petioles 2 or more cm. long, connate at 

 the base : rounded terminal corymb loose, ample, 2 to 3.4 dm. broad, its 

 branches subtended by bract-like much reduced leaves; bractlets linear 

 or filiform; branches and pedicels dark purple, glandular-pubescent: 

 heads 8 mm. long, 24-flowered ; involucral scales about 15, linear, acute, 

 purple, puberulent, unequal, not strongly imbricated : corollas 5 to 6 

 mm. long, exceeding the nearly white pappus : achenes black, white- 

 puberulent under a lens. — Collected by C. G. Pringle on slopes of 



