Vines and Climbing Plants of Puerto Rico and the Virgin Islands

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256 Vines and Climbing Plants of Puerto Rico and the Virgin Islands 2. Dalbergia monetaria L.f., Suppl. Pl. Syst. Veg. 317. 1781. Fig. 102. F-I SYNONYM: Securidaca volubilis L. pro parte Membrillo, Palo de brasilete Liana with pendulous branches, which supports itself on other plants by means of short branches that entangle like tendrils, attaining 10 m or more in length. Stems flexible, cylindrical, up to 10 cm in diameter; bark light brown; branches cylindrical, pubescent on the younger portions. Leaves alternate, 3- to 5-foliolate; leaflets alternate, 5-12 × 3-7 cm, ovate or elliptical, involute, the apex acuminate, the base obtuse or rounded, the margins entire or slightly undulate, revolute; upper surface dark green, shiny, glabrous; lower surface pale green, dull, puberulent, with prominent venation; petiolules 1. Desmodium axillare (Sw.) DC., Prodr. 2: 333. 1825. Fig. 103. A-C BASIONYM: Hedysarum axillare Sw. SYNONYMS: Meibomia axillaris (Sw.) Kuntze Meibomia umbrosa Britton Meibomia sintenisii (Urb.) Britton 8. DESMODIUM thickened, puberulent; rachis puberulent, up to 11 cm long; petioles 1.2-5 cm long, puberulent; stipules minute, ovate, caducous. Inflorescences of short, clustered, axillary racemes. Calyx campanulate, green, 2-3 mm long, puberulent; corolla white, the standard rounded, 5-10 mm long, retuse, unguiculate at the base; the wings and the keel as long as the standard. Legume circular, flattened, 3-4 cm long. Seed one. Phenology: Flowering from February to October and fruiting from June to March. Status: Native, rather common. Distribution: Along the banks of rivers and streams, in the interior of the island, at middle and lower elevations. Also throughout the Antilles and in tropical South America. Public Forests: El Yunque, Guajataca, Maricao, Río Abajo, and Susúa. Erect, prostrate, or clambering herbs, perennial. Leaves alternate, usually trifoliolate; stipels minute; stipules minute, deciduous or persistent. Inflorescences of axillary or terminal pseudoracemes or panicles; bracts and bracteoles minute, deciduous or persistent. Calyx campanulate, with 5 short, almost equal lobes; corolla yellow, pink, or bluish, the standard oblong to rounded, retuse, narrow at the base, the wings and the keel of the same length; stamens 10, diadelphous or monadelphous; ovary superior, stipitate or sessile, pubescent, with few ovules, the style inflexed, the stigma minute. Fruit a linear legume, flattened or spiral, with the ventral margin or both margins deeply sinuate between the seeds, indehiscent, but separating in segments containing a single seed which adheres to the clothing or the fur of animals; seeds small, oblong. A genus of about 300 species of almost cosmopolitan distribution. Key to the species of Desmodium 1a. Stems cylindrical; legume crenate only along the ventral margin ……..………………… 2 1b. Stems trigonal; legume crenate along both margins ..…………………….... 3. D. intortum 2a. Legume with 2-3 segments; leaflets with the apex acute or acuminate or less frequently obtuse, distal leaflet cuneate at the base ..........………………..………………….....1. D. axillare 2b. Legume with 5-8 segments; leaflets with the apex obtuse or acute, distal leaflet obtuse or rounded at the base ...............……………………..………..……..……………………2. D. incanum Decumbent or scandent herb, scarcely branched from the woody base, attainig 2 m in length. Stems more or less cylindrical, producing aerial roots in the area of the nodes, pubescence mixed, of uncinate trichomes and minute, erect trichomes, glabrescent with age. Leaves alternate, trifoliolate; leaflets 3-9 × 2-6.5 cm, chartaceous, the apex obtuse, acute, or acuminate, usually
Vines and Climbing Plants of Puerto Rico and the Virgin Islands 257 mucronate, the margins entire, strigose; upper surface dark green, glabrous, puberulent on the venation; lower surface grayish green, strigose, with prominent venation; distal leaflet rhombic, with the base cuneate; lateral leaflets asymmetrical, one side elliptical, the other ovate,
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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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