Vines and Climbing Plants of Puerto Rico and the Virgin Islands

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178 Vines and Climbing Plants of Puerto Rico and the Virgin Islands slightly longer than the petioles; bracts subulate, ca. 2.5 mm long. Calyx green, not accrescent, of 5 subequal sepals, 6-7 mm long, chartaceous, elliptical, obtuse and aristate at the apex, ciliate at the basal margins, the midvein slightly prominent; corolla violet-pink, infundibuliform, ca. 3 cm long, the limb with shallow, rounded lobes; stamens and stigmas not exserted. Capsule ovoid-conical, ca. 5 mm long, glabrous, with a thin pericarp and with the chartaceous sepals persistent at the base; seeds 4 per fruit, cuneiform, ca. 3.7 × 2.5 mm, dark brown, finely pubescent at the margins. Phenology: Collected in flower in May. Status: Probably exotic.
Vines and Climbing Plants of Puerto Rico and the Virgin Islands 179 Distribution: Known from Puerto Rico by a single collection from Joyuda (Cabo Rojo) in 1913. This species is known from Cuba, Hispaniola (whence it was described), and the United States (Florida). 20. Ipomoea tiliacea (Willd.) Choisy in A.DC., Prodr. 9: 375. 1845. Fig. 71. D-H BASIONYM: Convolvulus tiliaceus Willd. Bejuco blanco, Bejuco de puerco, Goat foot, Wild potato, Wild vine Slightly woody vine, twining, 5-10 m in length, with abundant milky latex. Stems glabrous or pubescent, striate, cylindrical. Leaves alternate; blades simple, 5-20 × 4-14 cm, ovate, chartaceous, sometimes 3-5-lobed, the apex acuminate, the base cordiform, the margins undulate, ciliate; upper surface dark green, dull, usually with the venation sunken, glabrous except for the pilose midvein; lower surface pale green, with prominent venation, slightly pubescent; petioles 4-25 cm long, sulcate, puberulous. Flowers in double dichasia, axillary; peduncles shorter than the petioles. Calyx green, not accrescent, sepals unequal, 8-12 mm long, oblanceolate, glabrous, apiculate at the apex; corolla violet-pink to pale pink, with the center darker, infundibuliform, 5- 6 cm long, the limb with 5 rounded lobes; stamens and stigmas not exserted. Capsule depressedglobose, 8-10 mm in diameter, the pericarp thin, light brown; seeds 4 per fruit, glabrous, dark brown, dull, angular, 3.5-4 mm long. Phenology: Flowering and fruiting throughout the year. Status: Native, very common. Distribution: One of the most common species of Ipomoea in Puerto Rico. It is found on roadsides and river banks, on fences, in pastures, and in forests at lower and middle-upper elevations. Also on Culebra, Vieques and the Virgin Islands; the Antilles, the United States (Florida), the Bahamas, and from Mexico to Brazil. Public forests: Carite, Ceiba, El Yunque, Guánica, Guilarte, Maricao, Piñones, Río Abajo, Toro Negro, Tortuguero, and Vega. 21. Ipomoea tricolor Cav., Icon. 3: 5, t. 208. Fig. 71. I-K Herbaceous vine, twining or creeping, attaining 5 m in length, without milky latex. Stems glabrous, cylindrical, slender. Leaves alternate; blades simple, 5-12 × 4-14 cm, ovate, chartaceous, the apex acuminate and mucronate, the base deeply cordiform, the margins entire; upper and lower surface glabrous, minutely punctate, with the venation slightly prominent; petioles 2.5-10 cm long, glabrous. Flowers in simple or double dichasia, axillary; peduncle as long as or shorter than the petioles. Calyx green, not accrescent, sepals equal, 6-8 mm long, lanceolate, glabrous, obtuse at the apex, with the margin hyaline; corolla blue, turning violet when mature, infundibuliform, 6-7 cm long, the tube white outside and yellow inside, the limb with 5 rounded lobes; stamens and stigmas white, not exserted. Capsule conical, 1.3-1.6 cm long, light brown; seeds 4 per fruit, glabrous, black, dull, 9- 10 mm long. Phenology: Flowering from November to February. Status: Exotic, naturalized, uncommon. Distribution: On roadsides and in disturbed areas. Also on St. Croix, St. John, and St. Thomas. Native to Central America, but distributed throughout the tropics because of its cultivation. 22. Ipomoea triloba L., Sp. Pl. 161. 1753. Fig. 72. A-C Bejuquillo de puerco Herbaceous vine, twining or creeping, 2-3 m in length, with scarce milky latex. Stems green, cylindrical, smooth, slender, puberulous. Leaves alternate; blades simple, 3-6 (9) × 3-5 (6.5) cm, ovate to subcircular, usually 3-5-lobed, chartaceous, the apex mucronate, acute, or emarginate, the base cordiform or sagittate, the margins smooth, slightly revolute; upper surface with minute hairs on the veins; lower surface glabrous, with prominent venation; petioles glabrous, somewhat sulcate, 2-4 cm long, with two glandular depressions where they join the blade. Flowers in simple or compound dichasial cymes, axillary; peduncles longer than the petioles, quadrangular, pubescent, tuberculate. Calyx green, not accrescent, the sepals pilose, subequal, ca. 8 mm long, ovate to oblanceolate, the apex acuminate or acute; corolla violet-pink
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SMITHSONIAN INSTITUTION Contributio
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PREFACE To the future generation of
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Vines and Climbing Plants of Puerto
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Acelga trepadora ..................
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Wild cucumber .....................
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