Banisteriopsis quadriglandula B.Gates

  • Authority

    Gates, Bronwen. 1982. Banisteriopsis, Diplopterys (Malpighiaceae). Fl. Neotrop. Monogr. 30: 1-238. (Published by NYBG Press)

  • Family

    Malpighiaceae

  • Scientific Name

    Banisteriopsis quadriglandula B.Gates

  • Type

    Type. J. A. de Jesus 393, Bahia, saida de Itirucu/Maracás, fl fr (holotype, CEPEC; isotype, MICH) = T. S. Santos 442.

  • Description

    Latin Diagnosis - Liana, rami pertinaciter appresso-sericei, pilis aureis, trabecula usque 0.3 mm longa, vetustiores lenticellis brunneis prominentibus ornati. Stipulae minutae jugo interpetiolari junctae. Folia petiolo 8-13 mm longo, appresso-sericeo, eglanduloso, lamina 3.2-6.6 cm longa, 3.0-6.0 cm lata, late ovata vel orbiculari, basi obtusa cordatave, apice emarginata apiculataque, margine plana, eglandulosa, adaxialiter sparsim appresso-sericea, pilis trabecula usque 0.4 mm, abaxialiter dense nitido-sericea, pilis argenteis, trabecula 0.4-0.6 mm longa, adaxialiter laevi, venis lateralibus prominentibus abaxialiter. Inflorescentia floribus in umbellis 4-floriferis fasciculatis, umbellis in cymis vel dichasiis dispositis, appresso-sericea; bracteis bracteolisque 1.2-1.6 mm longis, late triangularibus, appresso-sericeis, involucratis, persistentibus; pedunculis 0.5-2.0 mm longis, pedicellis 12-15 mm longis, 0.6-1.0 mm diametro, 0.4-0.8 mm sine indumento, appresso-sericeis. Sepala 5, abaxialiter sericea, adaxialiter glabra et margine sericea, elliptica, apice acuta et involuta, 3.0-3.5 mm longa, 1.5-2.0 mm lata, 2 postero-lateralia glandes roseas 1.0-2.4 mm longa, 0.6-0.8 mm latas gerentia, glandes 1.8 mm superantia. Petala 5, rosea demum alba, lacerata, 4 lateralia inter sepala patentia, ungue 1.5-2.0 mm longo, limbo 7.0-10.0 mm longo, 5.5-10.0 mm lato, late elliptico vel orbiculari, 2 anterioribus quam 2 posterioribus majoribus et concavioribus; petalum posti-cum ungue erecto usque 3.0 mm longo et 1.0-1.5 mm lato, apice constricto, limbo 6.0-8.5 mm longo et 5.5-7.5 mm lato, late obovato, piano, dentibus basalibus dilatatis glandulosisque, ungue et parte basali limbi lutea. Stamina 10, filamentis 2.0-4.0 mm longis, illis 3 sepalis anticis quam ceteris longioribus; antherae loculis 0.8-1.6 mm longis, glabris, connectivis 3 sepalis anticis oppositis 1.0-1.4 mm longis, 1.0-1.2 mm latis, 0.6-0.8 mm profundis, obovatis, glandulosis, loculos non superantibus, ceteris 0.5-1.2 mm longis, 0.5-0.8 mm latis, 0.2-0.4 mm profundis, oblongis, eglandulosis vel 2 petalis anticis oppositis interdum glandulosis. Ovarium 1.0-1.2 mm altum, carpellis.3, uniovulatis, liberis, toro pyramidali adnatis, candido-sericeis; styli 3, aequales, 2.0-3.0 mm longi, crassi usque 0.4 mm diametro, recti, paralleli vel divergentes, stigmatibus capitatis. Fructus ex 3 samaris (vel abortu 1-2) constans; samara (solum unica suppetit) sine carpophoro, nuce 6 mm alta et 4 mm longa, rugulosa, appresso-sericea, ala usque 27 mm longa et 15 mm lata, appresso-sericea, pilis sessilibus trabecula recta 0.4 mm longa.

  • Discussion

    Collected in flower in April and May, and in young fruit in April.

    This species is very interesting in that in its general aspect, leaf size, shape and pubescence, flower color, sepal shape and pubescence, it closely resembles B. muricata. However, its androecium and gynoecium are quite different. Instead of the greatly enlarged connectives on the stamens opposite the 3 anterior sepals, these connectives are similar in size to those of the other stamens, and the styles are stout and straight, not slender with the posterior styles lyrate as in B. muricata; in its androecium and gynoecium B. quadriglandula resembles B. multifoliolata. Banisteriopsis quadriglandula is further unusual in that only the 2 posterior sepals bear glands, hence the name I have chosen for it.

  • Distribution

    Known only as a roadside vine in Bahia.

    Brazil South America| Bahia Brazil South America|