Vines and Climbing Plants of Puerto Rico and the Virgin Islands

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154 Vines and Climbing Plants of Puerto Rico and the Virgin Islands 1. Combretum grandiflorum G. Don, Edinburgh Philos. J. 346. 1824. Fig. 61. A-D Twining liana, 3-10 m in length. Branches cylindrical, somewhat compressed in the area of the nodes, sparsely pilose or glabrous, usually with the pith hollow. Leaves opposite; blades 7.5-14.5 (25) × 3.5-7(12) cm, elliptical, obovate, or ovate, chartaceous or coriaceous, the apex obtuse or rounded, the base obtuse, slightly asymmetrical, the margins entire; upper surface glabrous, with the midvein appressed-pubescent; lower surface glabrous except for some papillae along the primary and secondary veins, with prominent
Vines and Climbing Plants of Puerto Rico and the Virgin Islands 155 venation; petioles 10-13 mm long, geniculate at the base, appressed-pubescent. Flowers 4-5merous, ascending, numerous, in axillary racemes, horizontal, 6-12 cm long; pedicels 3-6 mm long. Hypanthium infundibuliform, 8-12 mm long, glabrous, red-purple, puberulous; sepals triangular, ca. 3 mm long; petals red-purple, spathulate, 1-1.2 cm long; stamens exserted, the filaments unequal; style simple, free, exserted. Fruit oval in outline, retuse at the apex, 5-winged, pale yellow or stramineous, 3-4 cm long, stipitate at the base. Seed one, pentagonal, 7-10 mm long. Phenology: Collected in fruit in February. Status: Exotic, cultivated, locally naturalized, uncommon. Distribution: Ornamental plant, native to central Africa, cultivated, naturalized in the Cerro Las Mesas area in Mayagüez. 2. Combretum indicum (L.) Jongkind, Fl. Gabon 35: 48. 1999. BASIONYM: Quisqualis indica L. Fig. 61. E-G Twining liana, attaining 6 m in length. Stem much branched from the base; branches cylindrical, somewhat compressed in the area of the nodes, glabrous or puberulous, usually with the pith hollow; adult stems deciduous, with 3 persistent spines at the nodes. Leaves opposite or subopposite; blades 6-17.5 × 2.2-7 cm, elliptical, oblong, or lanceolate, chartaceous, the apex acuminate, the base rounded, the margins entire; upper surface glabrous, with a prominent midvein; lower surface ferruginous-tomentulose or puberulous, with prominent venation; petioles 5- 12 mm long. Flowers sessile or subsessile, in terminal spikes or racemes on short lateral branches. Hypanthium green, tubular, 4-6.5 mm long, pubescent; sepals green, triangular, ca. 2 mm long; petals 5, oblong or oblanceolate, 1-1.5 cm long, pink, turning red when mature; stamens exserted, the filaments unequal; disc absent; style exserted. Fruit elliptical in outline, angular, with 5 narrow wings, ca. 3 cm long. Phenology: Flowering from July to March. Status: Exotic, cultivated and naturalized, uncommon. Distribution: Ornamental plant, native to tropical Asia, naturalized along roadsides. Also on St. Croix, St. John, and St. Thomas. Public forest: Río Abajo. References: Jongkind, C. C. H. 1991. Novitates Gabonenses 6. Some critical observations on Combretum versus Quisqualis (Combretaceae) and description of two new species of Combretum. Bull. Mus. Natn. Hist. Nat., Paris, Ser. 4 12: 275-280; Jongkind, C. C. H. 1999. Combretaceae. In: Flora du Gabon. Vol. 35. 115 pp. París. 17. Family CONNARACEAE 1. ROUREA Vines, shrubs, or trees. Leaves alternate, compound, imparipinnate or unifoliolate, petiolate; stipules present. Flowers 5-merous, bisexual, actinomorphic, in terminal, subterminal, or axillary panicles. Calyx of imbricate sepals, usually glandular; corolla of 5 petals, free or connate at the base; stamens 10, in two series, the filaments glabrous, connate at the base to form a short tube, the anthers dehiscent by longitudinal sutures; ovary superior, with 5 free carpels, each with two ovules, the stigma capitate. Fruit a follicle, dehiscent by a longitudinal suture, with the calyx accrescent and persistent at the base; seed one, black, arillate at the base. A pantropical genus of about 85 species, 42 of which are distributed throughout tropical America.
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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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Vines and Climbing Plants of Puerto Rico and the Virgin Islands

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