GREENMAN. — MEXICAN PLANTS. 299 



late, oblong-ovate to broadly ovate, 4 to 8 cm. long, 2 to 5 cm. broad, 

 short-acumiuate, entire, usually cordate at the base, finely pubescent upon 

 either surface, especially upon the prominent midrib and the strongly 

 reticulate veins beneath, above dark green, paler beneath : petioles canalic- 

 ulate, 1 to 3 cm. long, puberulent or finely pubescent, bearing at, their 

 bases 2 or more small subulate stipule-like structures : inflorescence in ax- 

 illary pedunculate minutely pubescent cymes ; jDcduncle 2 cm. or more 

 long ; pedicels 1 to 1^ cm. long ; calyx deeply 5-parted ; divisions lance- 

 linear, acute, about 4 mm. in length : corolla salverform, greenish yellow or 

 sometimes purple ; tube 22 mm. long, strongly contorted at the middle, 

 provided at the orifice with an aduate subcuneate crown and bearing on 

 the inside just above the attachment of the stamens a tuft of long villous 

 hairs ; lobes broadly obovate, 8 to 9 mm. long : anthers pubescent on the 

 outer surface: carpels villous-pubescent : fruit reaching a length of 3 dm.; 

 seeds about 2 cm. long. — Collected by C. G. Priugle, on lava beds near 

 Cuernavaca, altitude 1,600 m., 23 September, 1896, no. 6554. 



Astephanus pubescens. Stems slender, twining, finely striate, 

 pubescent : leaves short-petiolate, lanceolate to ovate-lanceolate, l-J- to 

 6 cm. long, 4 to 20 mm. broad, acute at the apex or sometimes submu- 

 cronate, obtuse at the base, entire, sparingly pubescent on either surface : 

 petioles 2 to 4 mm. long, pubescent : inflorescence in subumbellate short- 

 pedunculate several flowered axillary clusters ; peduncles 1 to 2 mm. 

 long : flowers on slender pubescent pedicels, the latter about 3 mm. in 

 length : calyx minute, 5-parted, pubescent on the outer surface, provided 

 on the inside with 5 small oblong glands alternating with the lobes : divis- 

 ions ovate, acutish : corolla subcampanulate, about 3 mm. in diameter, 

 deeply 5-lobed, white or tinged with brownish purple : lobes dextrorsely 

 convolute in the bud, oblong, emarginate at the apex, spreading, later 

 becoming somewhat reflexed, the upper inner surface, as well as the 

 corolla-tube inside, granular or almost lepidote : fruit not seen. — Col- 

 lected by C. G. Pringle, on a wet barranca above Cuernavaca, altitude 

 2,000 m., 21 September, 1896, no. 6507, and in the mountains near 

 Cuernavaca, 3 August, 1896, no. 7203. A plant with the habit of 

 Metastehna, or of Vincetoxicum, but by the entire absence of a crown, or 

 at most by a very rudimentary one, its affinity is rather with the genus 

 Astephanus, notwithstanding the presence of the minute glands at the 

 sinuses on the inside of the calyx. 



Gonolobus chrysanthus. Stems twining, greenish purple, granu- 

 lose, interspersed with spreading or subreflexed hirsute pubescence : leaves 

 ovate-oblong, acuminate, obtusish at the apex, a deep narrow open sinus 



