Banisteriopsis longipilifera B.Gates

  • Authority

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

  • Family

    Malpighiaceae

  • Scientific Name

    Banisteriopsis longipilifera B.Gates

  • Type

    Type. A. Krapovickas & A. Schinini 32897, Brazil, Mato Grosso, 23 km E of Aquidauana, fl fr (holotype, MICH).

  • Description

    Latin Diagnosis - Frutex usque 3 m altus, rami volubiles, appresso-sericei. Stipulae minutae, triangulares. Folia falcata, petiolo 6-12 mm longo, appresso-sericeo, eglanduloso vel ad apicem biglanduloso, lamina 5.0-13.5 cm longa, 3.8-7.9 cm lata, elliptica, basi truncata cordatave, apice acuminata apiculatave, margine plana vel parum revoluta et glandibus minutis instructa, pari prope costam ad basim aucto, adaxi-aliter glabra, abaxialiter sparsim appresso-sericea vel glabra, pilis rectis trabecula usque 1.0 mm longa, venis densius aureo-appresso-sericea, venis venulisque prominulis adaxialiter, venis prominentibus abaxialiter. Inflorescentia paniculata, axillaris, ramis appresso-sericeis usque 10 cm longis, lateralibus 6-16 flores ge-rentibus, in spira dispositos; bracteis bracteolisque 0.4-0.8 mm longis, triangulari-bus, involucratis, persistentibus; pedicellis sessilibus vel pedunculo 1.0 mm longo, 5-6 mm longis, 0.4-0.5 mm diametro, sparsim appresso-sericeis. Sepala 5, 1.4-1.6 mm longa, 0.8-1.2 mm lata, ovata, apice rotundata, abaxialiter sparsim sericea, adaxialiter glabra, 4 lateralia 2 glandes 1.6-2.2 mm longas et 0.6-1.0 mm latas gerentia, 0.8-1.0 mm superantia. Petala 5, lutea, glabra, denticulata, eglandulosa, suberecta, non inter sepala reflexa, petalum posticum quam 4 lateralibus non multo dissimile, parum minorius, ungue 0.5-1.0 mm longo, limbo 2.5-4.0 mm longo, 2.0-3.0 mm lato, elliptico, parum concavo. Stamina 10, filamentis 0.8-1.6 mm longis, basi connatis, crassis, illis sepalis oppositis quam illis petalis oppositis parum longioribus; antherae suberectae, loculis 1.0-1.2 mm longis, glabris, con-nectivis 0.8-1.0 mm longis, 0.4-0.7 mm latis, 0.2-0.4 mm profundis, oblongis, illis sepalis oppositis quam illis petalis oppositis parum majoribus. Ovarium 0.8-1.0 mm altum, carpellis 3, uniovulatis, liberis, toro pyramidali adnatis, candido-sericeum; styli 3, aequales, 1.0-1.2 mm longi, crassi, recti parallelique, stigmata truncata, parum complanata. Fructus ex 3 samaris (vel abortu 1-2) constans; samara carpophoro usque 1 mm longo et 2 mm lato, nuce 6-9 mm alta, 5-7 mm lata, utrinque alula 6-11 mm longa et 1-6 mm alta instructa, sub nuce confluenti, sparsim appresso-sericea, pilis aureis, trabecula recta 1.5-2.0 mm longa, ala 1730 mm longa, 9-18 mm lata, sparsim appresso-sericea nuce simili, margine infer-iore convexo et nuce amplectenti, margine superiore ad basim appendicula 4-6 mm longa et 1-2 mm alta munito.

  • Discussion

    Collected in flower and fruit in April and July.

    This species is distinguished by its glabrate leaves, fruit with sparser, longer hairs and the well-developed lateral winglets on the nut which are confluent below the nut. The name refers to the hairs on the samara which are much longer than those of other species in the subgenus Banisteriopsis.

  • Distribution

    Known only from cerrado near Aquidauana in Mato Grosso, Brazil.

    Brazil South America| Mato Grosso Brazil South America|