ROBINSON AND FERNALD. — MEXICAN PLANTS. 119 
slender, 5-9 lines in length: peduncles springing from the upper axils, 
about 2 inches long, slightly thickened upward: heads large, radiate, 
5 lines high, including the rays 9 lines broad; scales of the involucre 
narrowly linear, } line wide, caudate-attenuate, 4 lines in length: ray 
flowers 18-20, pale yellow; ligules 3 lines long, 3-toothed at the apex; 
disk flowers including achenes 4} lines long: style branches of the lat- 
ter with attenuate hispid appendages, those of the former smooth; 
achenes oblong, black with thickened white margins, puberulent, scarcely 
ciliolate, 1} lines long. — Collected in niches of dry rocks at Bade- 
huache, Sonora, by Mr. Lloyd, 2 December, 1890 (no. 400). A 
species nearly related to P. leptoglossa, Gray, and P. Palmeri, Wats. ; 
distinguished from the former by its much more copious pubescence, 
more attenuate involucral scales, and larger flowers; from the latter 
' by its slender terete branches, and by its achenes which are scarcely 
ciliolate instead of having a copious ciliation. 
CaCALIA GLoBOsSA. Caudex short, horizontal, giving off numerous 
fibres: stem simple, flexuous, 8 inches in height, glabrate, except near 
the somewhat fuscous-tomentose summit: leaves thickish, nearly oF 
quite glabrous, somewhat glaucous, cartilaginous upon the crenate- 
dentate margins, obtuse, pinnately veined; the radical ones deltoid, 
1} inches long, nearly as broad, cordate with a broad shallow sinus ; 
their petioles 1} inches long, slender above, dilated below ; the cauline 
leaves for the most part consisting of ovate clasping cartilaginous 
dentate phyllodia; only the lower ones surmounted by an ovate OF 
deltoid crenate blade: heads about 6-flowered, densely packed together 
in a globular inflorescence (9 lines in diameter): involucral scales 
obovate-oblong, 3 lines in length, with ciliate margins and tip, thickened 
in the middle, especially near the summit: corollas 2} lines high; ™ 
linear lobes little exceeding the tube: pappus sparing. — Collected in 
a moist meadow, Guachuchic, Chihuahua, by Mr. Hartman, 29 June, 
1892 (no. 522). A 
PHILIBERTIA CYNANCHOIDES, Decsne., var. SUBTRUNCATA. Leaves 
narrow, attenuate, abrupt at the hase or subcordate with a very 
shallow open sinus and spreading auricles, — Collected at Fronteras, 
Sonora, at 4,550 feet, by Mr. Hartman, 25 September, 1890 (no. 4). 
The type both by description and authenticated specimens has deeply 
cordate and usually broader leaves. No other differences have been 
noted. 
PHACELIA RUPICOLA. Perennial, hirsute, subacaulescent: leaves 
springing from an elongated thickish ascending caudex, deeply 
pinnatifid; blade oblong in outline, 2-3 inches long, equalling the 
