482 PROCEEDINGS OP THE AMERICAN ACADEMY. 



foliar characters, smaller flowers, shorter claw, pubescence on the corolla- 

 lobes, and also by having a shorter column. 



Gonolobus caudatus, Gray, var. trachyanthus. Shrubby, 3 

 to 6 dm. high : leaves petiolate, lanceolate, attenuate, glabrous, 2.5 to 

 3.5 cm. long, 10 to 15 mm. broad : corolla distinctly puberulent above. — 

 Collected by C. G. Pringle in Tomellin Canon, altitude 600 m., 24 July, 

 1897, no. 6654. 



IpomcEa dimorphophylla. Stems twining, purplish, more or less 

 pubescent: leaves petiolate, ovate, 4 to 10 cm. long, 3 to 8 cm. broad, 

 acuminate, subcordate, entire or deeply 3-lobed, lobes obtuse, mucronate, 

 pubescent upon either surface especially on the prominent midrib, nerves, 

 and veins beneath ; petioles 2 to 5 cm. long, pubescent, often provided 

 with two glandular organs at the base of the leaf-blade : inflorescence in 

 axillary pedunculate 1-several-flowered cymes ; peduncles green or green- 

 ish purple, 2 to 15 cm. in length, more or less pubescent; pedicels some- 

 what thickened, about 1 cm. long ; bracts and bracteoles caducous : 

 calyx-divisions oblong, 6 to 7 mm. long, nearly equal, the outer slightly 

 shorter, rounded or retuse at the apex, dark brown or almost black with 

 lighter scarious margins : corolla white, open-funnelform, about 6 cm. 

 long: stamens included, one half as long as the corolla; fllaments un- 

 equal, pilose at the base : style about eqvialling the stamens : mature 

 capsule and seeds not seen. — Collected by C. G. Pringle in a barranca 

 near Cuernavaca, 4 August, 1896, no. 7241, and in the same locality, 

 altitude 1900 m., 23 August, 1897, no. 6658. 



IpomcEa tentaculifera. Glabrous throughout : stems herbaceous, 

 twining, somewhat angled : leaves cordate, entire, acuminate, mucronate, 

 with an open sinus at the base and rounded basal lobes, 8 to 10 cm. long, 

 5 to 6 cm. broad : petioles 5 to 6 cm. long: peduncles 7 to 12 cm. long, 

 1 -flowered : pedicels about 7 cm. long, much thickened: sepals nearly 

 equal, oblong, 10 to 12 mm. long with a rounded apex and sub-scarious 

 margins, the inner ones slightly longer, the outer covered with herba- 

 ceous tentacle-like outgrowths: corolla "violet throughout," open-funnel- 

 form, about 7 cm. long : stamens unequal, included, about one third the 

 length of the corolla; filaments villous-pubescent at the base. — Collected 

 by C. G. Pringle in Tomellin Canon, altitude 1540 m., 17 July, 1897, 

 no. 6702. 



A beautiful and well marked species readily recognized by the one- 

 flowered peduncles, the long almost fleshy pedicels, and by the peculiar 

 tentacle-like growths on the calyx. 



Cordia insularis. Shrub 3 to 5.5 m. high: stems and branches 



