ROBINSON AND GREENMAN. — MEXICAN PLANTS. 391 
diameter, covered with a light-colored cracked cortex ; branches slen- 
der, flexuous, ascending, a span in length: leaves lanceolate in outline, 
pinnatifid, plicate, prominently veined beneath, 4—6 lines long, cuneate 
at the base; the tooth-like segments short, obtuse: peduncles axil- 
lary, 1-2 inches in length; spikes oblong, dense, 6-10(-22) lines 
long, 4 lines in diameter: bracts ovate-lanceolate, acute, ciliated, and 
pubescent, 1} lines long: calyx 2-parted, persistent ; segments entire 
or minutely 2-toothed : corolla purplish, much exserted, 24 lines long, 
d-lobed; the ventral lobe somewhat larger than the others: stamens 4, 
in pairs; the ventral ones with slender erect appendages springing 
from the connective and exceeding the anthers in length: style short; 
stigma strictly simple, oblique. — Collected in wet alkaline soil, Mapim! 
Desert, Durango, 25 November, 1893 (no. 4625).— An anomalous 
species with the 5-parted corolla and appendaged anthers of Verbena, 
but the 2-cleft calyx and entire oblique stigma of Lippia. 
CuNnILA PYCNANTHA. Stems slender, branching, herbaceous, °F 
shightly ligneous, tomentulose: cortex light brown, peeling off. leaves 
ovate-lanceolate, long-acuminate, 14-23 inches long, nearly half as 
broad, rounded or subcordate at the base, short-petioled, serrate except 
at the base and apex, smooth and dull green above, much paler and 
glaucous beneath, somewhat tomentose upon the midrib and petiole: 
flowers very numerous, small, not at all verticellate, but disposed 1 
dense terminal capitate cymes: corolla pubescent upon the outer Sul 
face, 2 lines long, little exceeding the pubescent calyx. — Collected 
on Nevado de Colima, Jalisco, 7,000 feet, 22 May, 1893 (no. 5511). 
Well characterized by the dense terminal inflorescences, which give 
the plant a Eupatorium-like habit. 
Satvia Prineiet. Shrub, 3-6 feet high, stems essentially smooth, 
finely striate, branching: leaves ovate, shortly acuminate, rounded oF 
abrupt at the base, serrate, a little over 2 inches in length, 14-2 inches 
in breadth, glabrous upon both surfaces ; petioles 4—6 lines in length: 
spikes dense, terminal on the branches, 2-3 inches long; bracts ovate, 
acuminate, ciliated, and somewhat pubescent, 6 lines long, rather per 
sistent: calyx tubular, 8 lines long, ciliated, pubescent within, 10- 
ae ‘ r 
_ ribbed, becoming corrugated and compressed at the throat; the uppe 
__ lip ovate, acuminate, entire ; the lower lip bifid: corolla rose-purple, 
1} inches long; the upper segment very pubescent, $ inch in eet 
__ the lower spreading, about equal in length. — Collected under cliffs © 
_ the barranca of Tequila, 2 October, 1893 (no. 4564). 
_ Evpnorsta pericatuta, Boiss. This species was described from 
_ a Mexican specimen in the herbarium of Pavon, but without exact 
