332 PROCEEDINGS OP Tin: AMERICAN ACADEMY. 



canons near Guadalajara, Jalisco, Mexico, 29 October, 1889, no. 2343, 

 and earlier on the Rio Blanco in the same neighborhood l>\ Dr. Edw. 

 Palmer, October, 1886, n<>. 665. Both plants were distributed as /.'. 

 Benlhamii. However, Klatt'a Bpeciea of thai name (which is a clear 

 Bynonym of the earlier /-'. Ehrenbergii, Elemsl.) has ovate Berrate not 

 cordate leaves, more numerously flowered heads, etc. 



ED. < bapalbnse, Wats., var. salicifolium. Leaves narrowly lance- 

 olate, merely serrulate, acute at both ends, 1 to 'J cm. long, 1.2 to 1.1 

 cm. broad: Bcales of the involucre oblanceolate, broader than in the 

 typical form. — Collected l>y C. G. Pringle on mountains near Lake 

 Chapala, Jalisco, Mexico, 18 October, 1895, no. 7i>71. The Leaves of 

 the typical form arc more than 1 cm. broad. The variety retains the 

 floral characters and unequal pappus of the type 



E. chiapense. Stem terete, clothed with a dense purplish brown 

 tomentum; internodes long (0 to 8 cm.): leaves opposite, ovate, 

 acuminate, Berrate-dentate except near the rounded base, dull green 

 and except on the subpinnate nerves nearly glabrate above, paler and 

 ferrugineous-tomentose upon the nerves and veins beneath, 1 to l.i dm, 

 long, 6.5 to s em. broad; petioles densely tomentose, 1 to .V.". em. long: 

 heads numerous, 9 mm. high, about 24-flowered, home in a compound 

 round-topped corymb (1.5 dm. broad); the" opposite branches and 

 pedicels tomentose with purple gland-tipped hairs; involucre subsimple 

 and scarcely imbricated ; scales about 10, narrowly linear, attenuate, 

 mostly 2-ribbed, •'> nun. Ion-, pubescent: corollas glabrous, ■> nun. long, 

 exceeding the dull white pappus; throat equalling the proper tube: 

 aehenes hlack, tdahrous, tapering toward the base, 1 nun. long. — 

 Collected by E. W. Nelson, near Pinabete, Chiapas. Mexico, altitude 

 2,000 to 2,400 in., s February, L896, no. 3786. This B pecies is n lated 

 to /•;. Ehrenbergii, Elemsl., hut has much narrower involucral Bcales, 

 smaller heads, glabrous corollas, etc. It i- also and perhaps still more 

 closely related t<> /•,'. DonneU-Smithii, Coulter, which, however, has 

 pale ohtusish involucral bracts, and flowers much smaller, Bcarcely 

 more than hall' as long. 



E. crassirameum. Large shrub or small tree. :; to ."> m. high, 

 glabrous throughout: branches thick, terete, soft-woody to the inflores- 

 cence, covered with a pale gray cortex : leaves opposite, petiolate, la: g 

 deltoid-ovate, thin, pellucid-punctate, glabrous, acuminate, repandly lew- 

 toothed a i the sides, pinnately veined, becoming L.5 dm. long and 

 aboul equally broad; petioles 5 cm. in length: heads numerous, about 

 la-flowered, pedicellate in dense rounded compound corymbs (9 cm. in 



