Diplopterys mexicana B.Gates

  • Authority

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

  • Family

    Malpighiaceae

  • Scientific Name

    Diplopterys mexicana B.Gates

  • Type

    Type. M. Vázquez et al. V-951, Mexico, Veracruz, Hermanos Cedillo-La Escuadra por el Río Soloxúchil, Mun. Hidalgotitlán, fl (holotype, JALAPA; isotypes, F, MICH).

  • Description

    Latin Diagnosis - Liana, rami juniores appresso-sericei, vetustiores glabrati. Stipulae minutae, triangulares, saepe jugo interpetiolari junctae. Folia chartacea, petiolo 7-8 mm longo, appresso-sericeo vel glabrato, canaliculata adaxialiter, eglanduloso, lamina 8.2-15.2 cm longa, 3.6-6.7 cm lata, anguste elliptica vel elliptica, basi cuneata, apice acuminata, margine plana et glandulis minutis instructa, glandulis basi prope costam majoribus, adaxialiter glabra, abaxialiter sparsim appresso-sericea, pilis rectis sessilibus trabecula 0.2-0.3 mm longa, venis venulisque prominulis adaxialiter, et 7-8 paribus venorum lateralium prominentibus abaxialiter. Inflorescentia axillaris, in umbellis 4-floriferis composita, appresso-sericea, usque 7 umbellis in racemis dispositis; bracteis bracteolisque 2.0-2.5 mm longis, lanceolatis, rotun-datis apice, abaxialiter sparsim sericeis, divergentibus, persistentibus; pedicellis sessilibus 12-15 mm longis, 0.5 mm diametro, sparsim appresso-sericeis vel glabrate. Sepala 2.8-3.0 mm longa, incurvata et reflexa apice, appresso-sericea abaxialiter, glabra adaxialiter, apice rotundata, sepalum anticum anguste oblongum usque 1.4 mm latum, 4 lateralia deltata, 0.8 mm lata ad apicem, biglandulosa, glandes 1.0-1.2 mm superantia, glandibus 2.0-2.4 mm longis et usque 1.0 mm latis. Petala lutea, extus sparsim sericea, longe fimbriata, eglandulosa, 4 lateralia inter sepala patentia, ungue 1.5-2.0 mm longo, 0.4-0.6 mm lato, limbo 7-10 mm longo, 6-9 mm lato, late elliptica, antero-lateralibus quam postero-lateralibus parum maioribus et concavioribus, petalum posticum ungue erecto 3.0 mm longo et 0.6 mm lato, crasso, limbo 6.0-6.5 mm longo et 5.0-6.0 mm lato, obovato, piano. Stamina filamentis connatis basi usque 1.4 mm, illis sepalis oppositis 3.4-3.8 mm longis, illis petalis oppositis 2.4-2.8 mm longis, 3 anticis rectis, erectis, illis sepalis antero-lateralibus et petalis postero-lateralibus oppositis postice spec-tantibus, 3 posticis inter stylos posticos inflexis; antherae loculis 1.0-1.4 mm longis, glabris, connectivis sepalis oppositis 0.8-1.0 mm longis, 0.6-0.8 mm latis, 0.4-0.6 mm profundis, obovatis, illis petalis oppositis 0.7-1.0 mm longis, 0.4-0.5 mm latis, 0.2-0.5 mm profundis. Ovarium 1.5 mm altum, dense sericeum; stylus anticus 2.6-2.8 mm longus, rectus erectusque, usque medium pubescens, styli postici 2.3-2.4 mm longi, basi divergentes et pubescentes, pilis V-formibus, sessilibus, brachiis multum inaqeualibus, brachio longo usque 1.5 mm, altero minuto, stigmata capitata. Fructus non suppetit.

  • Discussion

    Collected in flower in August.

    This species is distinguished by its chartaceous leaves, larger flowers, and the anterior style longer than the posterior styles.

  • Distribution

    Known only from the type from Veracruz, Mexico, in tall evergreen forest.

    Mexico North America| Veracruz Mexico North America|