GREENMAN, — MEXICAN PLANTS, 295 
Ill. — DESCRIPTIONS OF NEW AND LITTLE KNOWN 
PLANTS FROM MEXICO. 
Tradescantia macropoda. Roots tuberous, fascicled: stems erect 
or suberect, sparingly branched, bilineate-pubescent, otherwise glabrous 
or puberulent : leaves oblong-ovate, acute, 5 to 8 cm. long, 1} to 2} cm. 
broad, abruptly narrowed below to an unequal base, glabrous or some- 
times inconspicuously puberulent on either surface ; margin, except at the 
ciliated base, hispidulous: sheaths 5 to 8 mm. long, puberulent, espe- 
cially along the line of pubescence on the stem, strongly ciliate: inflores- 
cence umbellate on rather long slender peduncles (2 to 44 cm. long): 
bracts orbicular-ovate, obtuse, glabrous, 5—7-nerved: flowers several, 
fugitive in the bracts; calyx-divisions oblong, navicular, thin or scarious, 
l-nerved, 3 to 4 mm. long, one half as broad; the outer sepal often 
sparingly long hirsute-pubescent on the keel: corolla light purple in the 
dried state ; petals about 6 mm, long, two thirds as broad: stamens 6, 
equal; filaments somewhat exceeding the corolla, rather scantily covered 
toward the base with multicellular hairs ; anther-cells globose, equal, 
Widely separated by a long narrow connective: ovary glabrous or with a 
few scattered glandular hairs at the apex: seeds light brown, transversely 
_ Tugose. — Collected by C. G. Pringle, on moist banks of mountains 
above Cuernavaca, altitude 2,000 m., 3 August, 1896, no. 6402. A 
Species nearly related to 7. commelinoides, Reem. & Schult., but readily 
Separated by the nearly glabrous character throughout, and by the long 
slender glabrous peduncles. 
/ Scheenocaulon Pringlei. Bulbs ovoid, 1 to 2 cm. in diameter: 
caudex erect, cylindrical, 3 to 10 em. long, surrounded by a covering of 
dark brown fibres, the remnants of the bulb-scales and outer leaves: foliar 
leaves linear-attenuate, 1 to 5 dm. long, 2 to 6 mm. broad, 9-10-nerved, 
Smooth on either surface, margin slightly roughened: naked scape 33 to 
6 dm. high, terete or slightly flattened, smooth: inflorescence dense, 3 to 
8 cm. long, 1 em. broad: bracts broadly ovate, acute, scarious, 2} mm. 
long: divisions of the perianth oblong, about 4 mm. long, 3-nerved, ob- 
‘use or rounded at the slightly thickened apex, margins scarious, irregu- 
larly subdenticulate, or entire: stamens in anthesis about equal or slightly 
€xceeding the divisions of the perianth (even in the later stages exceeding 
the perianth divisions by about 1 mm. only): immature capsules about 
12mm. long, erect, glabrous, rather dense, and somewhat appressed to the 
thachis. — Collected by C. G. Pringle, on lava beds, Serrania de Ajusco, 
altitude 2,400 m., 23 August, 1896, no. 6415. 
