:'.:;<) PROCEEDINGS OP THE A.MEBICAN A.OADEM7. 



ceeding the gradually ampliated throat : achenea Blender, brown, attenu« 

 ate below, 8 mm. long. -Collected by E. W. Nelson on eastern slope 

 of Mt. Orizaba, altitude 1,500 to 2,100 m., 21 March, 1894, no. 804. 

 \ <v /'. subpenninervium, Klatt. but with smaller more numerous heads, 

 and with petioles _' to ;; times as Long, etc. 



E. llbh \i lb, Sch. I >i j >. in Klatt. Leopoldina, \\. 89 (188 h. Add 

 Byn. II. drepanophyUum^ Klatt, Ann. k. k. Naturh. Hofmus. Wien, i.\. 

 356 (1894). The type of the latter species Btated by Dr. Klatt as col- 

 lected by Sauwne is Gammer's no. 122 from Cozumel Isl. 



E. albica.1 ii:, Sch. 1 V i j > . , var. laxius. [nflorescence somewhat looser 

 than in tin; type: scales of the involucre linear-attenuate, 5 nun. long. — 

 Collected by Dr. Edward Palmer in Vmala. Mexico, 16 to 25 August, 

 1891, no. 1 174 (type) and by Dr. J. N. Rose at Rosario, Sinaloa, 7 

 July. 1897, no. 15G6. Dr. Rose's no. 1839 from the Bame locality is 

 probably the Bame, although the inflorescence is -till more open. 



E. amblyolepis. Smoothish herb or underahrub, 3 to G dm. high; 

 stems slender, terete, at first puberulent, soon glabrate and lucid, copi- 

 ously branched; branches opposite, ascending: haves opposite, lanceo- 

 late, acute to attenuate at each end. serrulate to Bubentire, thin, green, 

 glabrous, and somewhat lucid, minutely pellucid-punctate, 5.5 cm. Long, 

 1.3 cm. broad. 3-nerved from somewhat above the cuneate base; petio 

 4 to G mm. long: heads small, numerous, in Bat-topped corymbs; pedi- 

 cels 5 to 8 mm. long, bracteolate near the summit; involucral bracts 

 about 13, in 2 subequal series, obovate-oblong, pale green, Btriate, 

 rounded and ciliolate at the summit, 3 mm. long, at length spreading: 

 flowers about 15, small : corolla probably while, 8.5 mm. long, somewhat 

 exceeding the very delicate and rather sparse bright white pappus : achenes 

 1 .o nun. long, black, minutely roughened on th^ sharp angles. — ( Collected 

 by < '. G. Pringle on cool Ledges of the Sierra de Tepoxtlan, 24 km. north- 

 east of Cuernavaca. altitude 2,300 in.. 7 February, lS'.K). no. S03 1. 



E. AREOLAEE, DC, var. leiocarpum. Nearly glabrous throughout: 

 flowers somewhat larger than in the typical form and borne in condensed 

 (•vines: achenes smooth. — Collected by E. W. Nelson, near Chilpan- 

 cingo, Guerrero, Mexico, altitude 2,700 to 8,100m., 24 December, 1894, 

 no. 2221. Types in herb. Gray and herb. C S. Nat. .Museum. There 

 are no marked differences between the typical form of this Bpecies and the 

 later E. tubiflorum, Benth. PL Hartw. 76, bo far as the tolerably detailed 

 descriptions indicate. Hemsley refers to Ghiesbreght's no. 580 under 

 both names. The vaguely characterized E. papantlense of Lessing may 

 perhaps he the same. 



