226 ANNALS NEW YORK ACADEMY OF SCIENCES 



Sepals less than 10 mm. long. 



Sepals 6-8 mm. long; leaf -blades lobed or entire; 



corolla purple; Cuban. 100. /. obtusata. 



Sepals 4-6 mm. long; leaf-blades entire. 



Corolla pink, 6-8 cm. long. 101. /. carrwa. 



Corolla purple, about 4.5 cm. long; leaf-blades 



submembranaceous. 102. /. microsticta. 



83. Ipomoea plicata Urb. sp. nov. 



Slender, perennial, climbing over trees and bushes, 6-10 m. long, branching, 

 woody below with a rough, whitish bark; finely pubescent above; leaf-blades ovate 

 or ovate-lanceolate, more or less plicate, acuminate, 4-10 cm. long, glabrous above, 

 finely pubescent beneath; petioles 1-4 cm. long; peduncles shorter than the petioles, 

 1- to 3-flowered; pedicels 1 cm. long; sepals yellowish-green, 10-13 mm. long, acute, 

 puberulent; corolla 4-5 cm. long, campanulate-furmelform, fragrant; limb about 

 4 cm. broad, with 5, rounded lobes; capsules ovoid, apiculate, longer than the calyx, 

 2-celled; seeds densely lanate. 



Jamaica: Mount Diablo, 2800 ft. alt., Harris 8997, Aug. 29, 1905 

 (type-Y). 



84. Ipomcea crinita Brandegee, Zoe 5: 216. 1905. 



The woody stems as weU as the petioles and peduncles pilose with white, spread- 

 ing hairs, 4-5 mm. long; leaf-blades 3-lobed, about 14 cm. broad; peduncles elong- 

 ated, 20-22 cm. long, subumbellately flowered; outer sepals pilose, 7 mm. long, 

 apiculate. 



Type locality: Culiacan, Mexico. 



Distribution: Ravines and thickets, western Mexico. 



Specimens examined: Brandegee, Sept. 12, 1904 (dupl. type — G). 



85. Ipomoea populina sp. nov. 



A stout, woody, perennial twining vine, cUmbing over trees; stems 1-2 cm. thick, 

 with a smooth bark; leaf-blades ovate, entire, acute, shallowly cordate, 5-8 cm. long, 

 reticulate-veined beneath; petioles slender, longer than the blades; peduncles stout, 

 on the stems of the preceding year, 8-12 cm. long, cymosely many-flowered, the 

 angled pedicels 2.5-3 cm. long; sepals subequal, orbicular-ovate, 5-8 mm. long, 

 spreading in fruit; corolla tinged with magenta at the base, 6 cm. long; limb 6-8 cm. 

 broad with 5, rounded lobes, tube 12-15 mm. thick; capsules thick-walled, oblong, 

 2 cm. long and 1 cm. thick, 4-valved, 2-celled; seeds twice as long as thick, with a 

 long, white dorsal coma. 



Mexico: Acapulco, Palmer 482, 1894-95 (type — N, G). 



