Banisteriopsis amplectens B.Gates

  • Authority

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

  • Family

    Malpighiaceae

  • Scientific Name

    Banisteriopsis amplectens B.Gates

  • Type

    Type. G. Hatschbach 34693, Brazil, Mato Grosso, Corrêgo Rancho (Mun. Alto Araguaia) fl fr (holotype, MBM; isotype, MICH).

  • Description

    Latin Diagnosis - Frutex pauciramosus, rami glabri, lenticellis numerosis instructi. Stipulae mi-nutae. Folia coriacea, sessilia, lamina 5.5-10.6 cm longa, 5.2-9.2 cm lata, interdum minore in inflorescentia, orbiculari vel late ovata, basi valde cordata vel amplexicaul!, apice brevi-acuminata, margine plana et glandulis minutis instructa praesertim in acumine, utrinque glabra et venis venulisque prominentibus. Inflorescentia axillaris in umbellis 4- vel 6-floriferis composita, glabra; bracteis brac-teolisque 1.2-1.5 mm longis, anguste triangularibus, glabris, involucratis, persis-tentibus; pedicellis sessilibus, 15-20 mm longis, 0.4-0.6 mm diametro, glabris. Sepala 2.0-2.2 mm longa, 1.5-2.0 mm lata, late elliptica, apice rotundata, ab-axialiter sericea, adaxialiter glabra, 4 lateralia 2 glandes gerentia et usque 1.2 mm superantia, glandibus 2.0-2.5 mm longis, 1.0-1.5 mm latis. Petala lutea, extus sericea, dentata, 4 lateralia inter sepala patentia, ungue usque 2.5 mm longo, limbo 9.0-9.5 mm longo, 7.5-8.0 mm lato, rotundato, cochleato, petalo postico ungue erecto 3.0-3.5 mm longo, usque 0.8 mm lato distaliter, ad apicem constric-to, limbo 7.0 mm longo latoque, orbiculari, piano, reflexo. Stamina filamentis crassis, erectis, illis sepalis oppositis 2.8-3.0 mm longis, subaequalibus, illis pe-talis oppositis 2.0-2.2 mm longis, subaequalibus; antherae reflexae, loculis sparsim pilosis, 1.2-1.6 mm longis, connectivis ad apicem papillosis, illis sepalis oppositis 1.2-1.3 mm longis, 0.6-0.7 mm latis, 0.5-0.6 mm profundis, obovatis, illis petalis oppositis 1.0-1.1 mm longis, 0.6 mm latis, 0.2-0.3 mm profundis, oblongis. Ovarium 1.5-1.8 mm altum, dense sericeum, styli recti, 2.6-3.0 mm longi, usque 0.3 mm lati, stylus anticus erectus et postici divergentes; stigmata capitata. Fructus ex 3 samaris (vel abortu 1-2) constans, carpophoro 1-2 mm longo usque 0.5 mm lato, nuce usque 9 mm alta et 8 mm longa, globosa, caperata, sparsim ap-presso-sericea vel glabrata, pilis trabecula usque 1.0 mm; ala (17—)21—28 mm longa, (10-) 12-17 mm lata, glabra, appendicula in margine superiore basi 1-2 mm alta et 1-2 mm longa secus basim.

  • Discussion

    Collected in flower in May and July and in fruit in July and September.

    This species is distinguished by its large leaves with amplexicaul base and its large fruit.

  • Distribution

    Known only from a few collections in the cerrado of Mato Grosso.

    Brazil South America| Mato Grosso Brazil South America|