ROBINSON AND FERNALD. — MEXICAN PLANTS. 121 
weak, loosely matted, decumbent, much branched, rooting at the joints, 
3-6 inches in length: leaves small, suborbicular, broader than long, 
shallowly sinuate-dentate, cartilaginous margined ; the largest 3 lines 
in diameter, abruptly contracted into a short winged petiole: pedicels 
axillary, opposite, filiform, 9-12 lines long: calyx in anthesis 2} lines 
in length, slightly accrescent and loosely surrounding the fruit: corolla 
yellow, spotted with purple; lobes fringe-toothed ; the median lobe of 
the lower lip somewhat retuse: anther cells not confluent: capsule 
compressed, obtusish, 1} lines in length. — Collected at Nacory, 
Sonora, at 3,750 feet, by Mr. Hartman, 4 December, 1890 (no. 288) ; 
and on the Bavispe River, Sonora, by Mr. Lloyd, 23 December, 1890 
(no. 440). Habit of M. Madrensis, Seem., but with fringed corolla. 
SALVIA RUBROPUNCTATA. Suffrutescent: stems branched, gray- 
ish ; branches brown, slightly scabrous, pulverulent: leaves ovate 
oblong, obtuse or rounded at the apex, abruptly contracted to a cu 
neate base, finely crenate-serrate, punctate with dark red dots, at first 
strongly rugose above and white-tomentose beneath, becoming nearly 
smooth and glabrous; the largest 1} inches long, half as broad; many — 
smaller ones clustered in their axils: spikes subcapitate, terminal, soli- 
tary, or 2-3 together, short-peduncled ; floral leaves lanceolate, slightly 
exceeding the calyx; verticels about 6-flowered, approximate: calyx 
21 lines long, covered with dense bluish wool, obscuring numerous 
bright scarlet glandular dots; the upper lip shortly 3-toothed ; 
teeth acuminate: corolla blue, 6 lines in length, punctate with 
glands; the lower lip about equalling the tube; the upper lanate 0” 
the outer surface. — Collected in the Cafion Huehuerachi, Sonora, by 
Mr. Lloyd, 12 December, 1890 (no. 451). The species appears - 
belong to § Hrianthe. It is noteworthy for the bright red glands 
which cover all parts of the flower, but are nearly or quite hidden by 
the enveloping bluish wool. 
ARCEUTHOBIUM sp. Staminate plant very robust, 6-7 inches long, 
profusely branched: stem terete at the base, 5-6 lines in diame 
ter, sheaths short, campanulate, truncate ; branches more OF less 
sharply quadrangular, bright yellow: spikes very numerous, short, 
few-flowered: flowers 3-4-parted; segments obtuse, ovate-oblongs 
arched over the stamens; the latter inserted near the middle of the 
segments. — Collected on pines at Pine Ridge Pass, Sonora, at 3,200 
feet, by Mr. Hartman, 17 December, 1890 (no. 340).. This interest 
ing plant may be the staminate form of A. robustum, Engelm., OF o 
A. campylopodium, var. (?) 8, Engelm. From the specimens of both 
species at hand the present plant differs in its considerably greater 
