GREENMAN. — MEXICAN PLANTS. 295 



III. — 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 Ak cm. long) : 

 bracts orbiculai'-ovate, obtuse, glabrous, o-7-nerved: flowers several, 

 fugitive in the bracts ; calyx-divisions oblong, navicular, thin or scarious, 

 1-uerved, 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 

 rugose. — 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 T. comyneluioides, Roem. & Schult., but readily 

 separated by the nearly glabrous character throughout, and by the long 

 slender glabrous peduncles. 



Schcenocanlon Pringlei. Bulbs ovoid, 1 to 2 cm. in diameter: 

 caudex erect, cylindrical, 3 to 10 cm. 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-lO-nerved, 

 smooth on either surface, margin slightly roughened : naked scape S^ to 

 6 dm. high, terete or slightly flattened, smooth : inflorescence dense, 3 to 

 8 cm. long, 1 cm. broad : bracts broadly ovate, acute, scarious, 2| mm. 

 long : divisions of the perianth oblong, about 4 mm. long, 3-nerved, ob- 

 tuse or rounded at the slightly thickened apex, margins scarious, irregu- 

 larly subdenticulate, or entire : stamens in anthesis about equal or slightly 

 exceeding the divisions of the perianth (even in the later stages exceeding 

 the perianth divisions by about 1 mm. only) : immature capsules about 

 12 mm. long, erect, glabrous, rather dense, and somewhat appressed to the 

 rhachis. — Collected by C. G. Pringle, on lava beds, Serrania de Ajusco, 

 altitude 2,400 m.. 23 August, 1896, no. 6415. 



