4 PROCEEDINGS OF THE AMERICAN ACADEMY, 
Oerst. Vidensk. Meddel. 1852, 102. Wiborgiu urticaefolia, HBK. Nov. 
Gen. et Spec. iv. 257, t. 389 (1820).— Sourm Mexico: plains of ~ 
Quilo, Jurgensen, no. 260, acc. to Hemsl.1.c. Nicaragua: Grenada, ee 
Oersted. Costa Rica: San José, Oe6ersted, Tonduz, no. 10,143 (hb. : | 
Gr.) ; pastures at Copey, Zonduz, no. 11,757 (hb. Gr.). Ecuapor: : 
Humboldt 5 Bonpland, Couthouy (hb. Gr.). | 
+ + Achenes glabrous throughout. 
2. S. microglossa, DC. Leafy-stemmed, hirsute-pubescent, branch- — 
ing: peduncles glabrous; heads numerous, small, 6 mm. in diameter: ~ 
rays 5, white or roseate, scarcely exceeding the involucre. — Prodr. Vv. — | 
497 (1836), including the var. PUBERULA, with pubescent peduncles (the 
prevailing form); Hemsl. 1. c.160. Baziasa microglossa, Steud. Nom. 
ed. 2, i. 192 (1840). — Curmvuanvua: humid places, Pilares, Hartman, 
po. 747 (hb. Gr.) ; near St. Julian, alt. 2150 to 2460 m., Nelson, no. 
4922 (hb. Gr.). Coanurna: near Saltillo, Palmer, no, 790, in paré 
{coll. of 1898). San Luis Potosi: 22° N. Lat., alt. 1850 to 2469 m., 
Parry § Palmer, with no. 492 (hb. Gr.). Srare or Mexico: moute ~ 
tains, St. Augustin, Berlandier (hb. Gr.); Pedvigal, Pringle, no. 7349 — 
(hb. Gr.) ; on walls, Pringle, nos. 7903, 8231 (both in hb. Gr.). : 
v4 3. S. humilis, Cass. Suberect, 3 dm. high or more often branching — 
from the base and widely spreading, pubescent ; heads few to many, 1-4 — 
- em. broad including the conspicuous well exserted externally roseate-— 
purple rays: disk-flowers numerous, pale yellow. — Dict. Sci. Nat-— 
xlvi. 481 (1827); DC. Prodr. v. 496; Hemsl. 1. c. ii. 160, eclipta 
humilis, HBK. Nov. Gen. et Spec. iv. 264, t. 894 (1820). Baziasa 
_ humilis, Steud. Nom, ed. 2, i. 192 (1840).—Micnoacan: near Ario 
and Patzcuaro, alt. 1850 m., Humboldt § Bonpland. Strate or Mexico? 
fields near San Nicolas, Bourgeau, no. 958 (hb. Gr.) ; valley of Toluca, 
Berlandier, no. 1215 (hb. Gr.) ; moist meadows, Nevado de Toluca, alt. 
3080 m., Pringle, no, 4245 (hb, Gr.); in mountains, Schaffner, no. 296 
— (hb, Gr.), 
* * Perennials. 2 
+ Stem prostrate, strongly repent. a 
