Banisteriopsis muricata (Cav.) Cuatrec.

  • Authority

    Maguire, Bassett. 1978. The botany of the Guayana Highland--part XI. Mem. New York Bot. Gard. 32: 1-391.

  • Family

    Malpighiaceae

  • Scientific Name

    Banisteriopsis muricata (Cav.) Cuatrec.

  • Description

    Species Description - Woody vine, sometimes shrubby, the stems sericeous to glabrate. Lamina of the leaves (3.5-)5.3-12.7(-16.5) cm long, (2.3-)4.8-7.5(-9) cm wide, ovate, elliptical, or rotund, cuneate to cordate at the base, acuminate to apiculate at the apex, eglandular or bearing 2-4(-5) pairs of stipitate glands below, sparsely sericeous to glabrate above, sparsely to densely (always densely in Guayana populations) silver- or golden-sericeous below, the tertiary veins scalariform; petiole 5-16 mm long, usually sericeous, eglandular or with 1-2 pairs of cupulate glands near the apex; stipules triangular, 0.5-1 mm long. Inflorescence composed of 4-flowered umbels grouped in dense axillary and terminal cymes, usually sericeous; bracts and bracteoles 0.5-1.2 mm long, broadly triangular, persistent; peduncle 0.5-3(-7) mm long. Pedicel 3-12 mm long, usually sericeous. Sepals abaxially sericeous, adaxiaHy sericeous near the margin, all eglandular or the lateral 4 biglandular, the glands 1.3-2 mm long. Petals pink, becoming paler in age, the posterior yellow in the proximal half, glabrous, the lateral 4 with the claw 0.8-1.4 mm long, the limb 4-8.5 mm long, 3.5-8 mm wide, orbicular, laciniate, eglandular; posterior petal with the claw 1.4-3 mm long, constricted at the apex, the limb 4-7 mm long, 3.5-6 mm wide, obovate, fimbriate with the basal fimbriae enlarged and gland-tipped. Filaments 1-3.6 mm long, the posterior 3 inflexed between the posterior styles; anthers with locules 0.6-1.2 mm long, glabrous, the connectives of those opposite the 3 anterior sepals glandular and enlarged, exceeding the locules by 0.8-1.7 mm opposite the antero-lateral sepals. Styles slender and diverging, the anterior 2.2-2.8 mm long, the posterior 2 lyrate, 2.6-3.6 mm long, the stigmas capitate. Samara sericeous, especially on the nut, with the dorsal wing (12-)20-34(-45) mm long, (9-)11-16(-20) mm wide, with at most a slight rounded projection at the adaxial base; nut with the sides rugose, tuberculate, muricate, or alulate (bearing several rounded or aculeate outgrowths in Guayana populations), the locule glabrous within.

  • Discussion

    1. Banisteriopsis muricata (CavaniHes) Cuatrecasas, Webbia 13(2): 503. 1958. Banisteria muricata CavaniHes, Tom. III, Nona Dissertatio Botanica 423. 1790. Heteropterys argentea Humboldt, Bonpland & Kunth, Nov. Gen. Sp. PI. 5: 165 (4° ed.). 1821 [1822]. Banisteria argentea (Humboldt, Bonpland & Kunth) Sprengel, Syst. Veg. 388. 1825. Banisteria metallicolor Adr. Jussieu in Saint-Hilaire, Fl. Bras. Merid. 3: 46. 1832 [1833]. Banisteria schomburgkiana Bentham, London Jour. Bot. (Hooker) 7: 129. 1848. Banisteriopsis argentea (Humboldt, Bonpland & Kunth) Robinson in Small, North American Flora 25: 133. 1910. Banisteriopsis schomburgkiana (Bentham) Robinson in Small, North American Flora 25: 133. 1910. Banisteriopsis metallicolor (Adr. Jussieu) O'Donell & Lourteig, Lilloa 9: 259. 1943. Type. Joseph de Jussieu, Peru, frt (P).

  • Distribution

    Distribution. From Chiapas, Mexico, south to Argentina. Collections from Guayana and nearby: VENEZUELA. Bolivar: Entre Los Castillos y San Felix, Bernardi 7955 (VEN); N slope of Cerro Bolivar, elev 300-400 m , Maguire et al 35965 (MICH, NY, VEN); Santa Rosa, Tovar 2 (VEN); Ciudad Piar-Pto. Ordaz, Trujillo 5965 (MY). BRAZIL. Roraima: Rio Mucajai, micleo Fernando Costa, Black 51-13716 (IAN); beira do Rio Branco, 5 km N Boa Vista, Black 51-13781 (IAN, UB); Boa Vista, Kuhlmann 732 (MICH); Rio Branco

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