Diplopterys cururuensis B.Gates

  • Authority

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

  • Family

    Malpighiaceae

  • Scientific Name

    Diplopterys cururuensis B.Gates

  • Type

    Type. Anderson 10803, Brazil, Pará, Rio Cururú, 1-10 km upriver (SE) from village of Pratatí, Alto Tapajós, 8°S, 57°5'W, fr (holotype, IAN; isotype, MICH, NY).

  • Description

    Latin Diagnosis - Liana, rami juniores appresso-sericei, vetustiores glabrati. Stipulae minutae, triangulares, jugo interpetiolari junctae. Folia coriacea, petiolo 5-8 mm longo, appresso-sericeo, canaliculato adaxialiter et biglanduloso ad apicem, lamina 5.7-10.2 cm longa, 2.8-4.7 cm lata, ovata, basi obtusa, apice acuminata, margine parum revoluta et glandulis minutis instructa, adaxialiter glabra, abaxialiter sparsim appresso-sericea, pilis sessilibus, trabecula recta 0.2-0.3 mm longa, venis venulisque adaxialiter prominulis, et 7-10 paribus venorum lateralium abaxialiter prominentibus. Inflorescentia axillaris, in umbellis 4-floriferis compositis, usque 5 umbellis in racemis dispositis, appresso-sericea; bracteis bracteolisque 1.0-1.5 mm longis, lingulatis, apice rotundatis, abaxialiter sparsim sericeis, divergentibus, persistentibus; pedicellis sessilibus 10-12 mm longis, 0.5 mm diametro, aureo-appresso-sericeis. Sepala 2.0-2.4 mm longa, usque 1.0 mm lata, incurvata, apice rotundata et reflexa, appresso-sericea abaxialiter, glabra adaxialiter, sepalum an-ticum anguste oblongum, 4 lateralia deltata et biglandulosa, glandibus 1.6-2.4 mm longis, 0.8-1.2 mm latis. Petala non suppetunt. Stamina filamentis connatis basi usque 1.0 mm, illis sepalis oppositis 2.2-2.6 mm longis, illis petalis oppositis 1.8-2.2 mm longis, 3 anticis rectis erectisque, illis sepalis antero-lateralibus et petalis postero-lateralibus oppositis postice spectantibus, 3 posticis inter stylos posticos inflexis; antherae loculis 0.6-0.8 mm longis, glabris, connectivis petalis oppositis 0.4-0.6 mm longis, 0.3-0.5 mm latis, 0.2-0.3 mm profundis, oblongis vel anguste ellipticis, illis sepalis postero-lateralibus oppositis 0.7-0.8 mm longis, 0.6 mm latis et 0.4 mm profundis, late obovatis, ceteris sepalis oppositis non suppetunt. Ovarium dense sericeum, 1.0 mm altum; stylus anticus rectus erectusque, 2.0 mm longus, basi pubescens, styli postici 2.2-2.6 mm longi, plus minusve divergentes, basi pubescentes, stigmata capitata. Fructus ex 3 mericarpiis (vel abortu 1-2) constans, sine carpophoro, nuce usque 7 mm alta et longa, orbiculari, crista dorsali semicirculari usque 4 mm alta et 2(-3) alulis utrinque instructa, alulis proximalibus usque 8 mm altis, et margine dissectis, appresso-sericea, pilis sessilibus, trabecula 0.1-0.2 mm longa.

  • Discussion

    Collected in fruit in February.

    This species is distinguished by its small leaves, short bracts and bracteoles, and its relatively small fruit with well-developed “hiraeoid” lateral wings.

  • Distribution

    Known only from two collections in inundated forest along the Rio Cururú.

    Brazil South America| Pará Brazil South America|