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Heteropterys laurifolia

Diagnostic description 4

Heteropterys laurifolia (L.) A. Juss., Ann. Sci. Nat. Bot. Sér. 2. 13: 176. 1840.

Fig. 121. A-F

Basionym: Banisteria laurifolia L.

Vine or sometimes scandent shrub, woody, twining, attainig 5-10 m in length. Stems flexible, cylindrical, lenticellate, attaining 3.5 cm in diameter. Leaves opposite, 5-15(23.5) × 2-9(13.5) cm, coriaceous, glabrous, oblong or elliptical, the apex acuminate or rounded, the base acute, the margins undulate or entire; upper surface shiny, with the midvein prominent, yellowish green; lower surface yellowish green, with the midvein prominent; petioles 1-1.2 cm long, without glands. Inflorescences of panicles, terminal or axillary, the axes densely ferruginous-pubescent; pedicels ca. 7 mm, ferruginous-pubescent, articulated above the base; bracts ca. 2 mm long, at the base of the pedicel; bracteoles in pairs, minute, inserted on the articulation of the pedicel. Calyx green, ferruginous-pubescent, of 5 oblong sepals, ca. 4 mm long, 4 of them with a pair of glands at the base of the outer surface, which are 1.2-2 mm long. Petals 5, yellow, unguiculate, 4-7 mm long. Mericarps 3, ferruginous-tomentose in the seminiferous portion, glabrous toward the wing, 2-4 cm long, with a dorsal wing, curved, ascendent or divaricate.

Phenology: Flowering and fruiting throughout the year.

Status: Native, very common throughout Puerto Rico.

Selected Specimens Examined: Acevedo-Rdgz., P. 3072; 5231; 5232; 7080; 7157; 7230; 10197; 10840; Axelrod, F. 10757; 10904; Britton, N.L. 426; 1510; Hartley 13368; Heller, A.A. 1320; 4406; Proctor, G.R. 44917; Sargent, F.H. 421; Sintenis, P. 101; 1559; 1693; 3286; 3809; 5068; Stevenson, J.A. 2187; Underwood, L.M. 481; 618.

Distribution 5

Distribution: In secondary forests or pastures or along roads or rivers. Also throughout the Antilles, from Central America to Bolivia. Reported for St. Croix by Niedenzu (according to Britton and Wilson, 1924).

Public Forests: Ceiba, El Yunque, Guajataca, Guánica, Maricao, Río Abajo, Susúa, and Toro Negro.

Sources and Credits

  1. (c) MBG, some rights reserved (CC BY-NC-SA), http://images.mobot.org/tropicosthumbnails/TropicosImages2/100137000/100137220.jpg
  2. (c) Smithsonian Institution, National Museum of Natural History, Department of Botany, some rights reserved (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10351607
  3. (c) Smithsonian Institution, National Museum of Natural History, Department of Botany, some rights reserved (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10351606
  4. (c) Pedro Acevedo-Rodríguez, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/28435422
  5. (c) Pedro Acevedo-Rodríguez, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/28435885

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