Swartzia buntingii R.S.Cowan

  • Authority

    Cowan, Richard S. 1967. Swartzia (Leguminosae, Caesalpinioideae Swartzieae). Fl. Neotrop. Monogr. 1: 3-228. (Published by NYBG Press)

  • Family

    Fabaceae

  • Scientific Name

    Swartzia buntingii R.S.Cowan

  • Type

    Type collection. B. Maguire, J. J. Wurdack, & C. K. Maguire 41953 (US 2267432; isotype NY), uppermost Río Yatua, Amazonas, Venezuela, Oct. 27, 1957.

  • Description

    Latin Diagnosis - Arbor 8-20 m alta, trunco 5 cm vel maiore diametro, ramulis pilosis ad longe pilosis; stipulae persistentes foliaceae, 6.5-28 mm longae, 1.5-9 mm latae, falcato-lanceolatae acutae ad acuminatae venulosae, leviter pilosae superficiebus ambabus; folia unifoliolata, petiolis 3-5 mm longis, pilosis, ad apicem stipellatis, stipellis 3-6 mm longis, petiolulis 2-3 mm longis, pilosis, laminis 12.5-25 cm longis, 4-8 cm latis, ellipticis ad elliptico-oblongis vel lanceolato-oblongis basi rotundatis obtusis ad cordulatis apice caudato-acuminatis, extremitate acuto vel retuso latere su-periore glabris, subtus pilosis, dense pilosis in costa, venis venulisque conspicuis, supra plus minusve impressis infra salientibus, venis primariis prope marginem conjugentibus; inflorescentiae 6-11 (-15) cm longae, pedunculo 10-42 mm longo, axe piloso, bracteis persistentibus ad deciduis, 1.5-2 mm longis, pilosis, bracteolis persistentibus, foliaceis, 3.5-7.5 mm longis, 1.5-2 mm latis, falcato-lanceolatis acutis ad acuminatis pilosis; pedicelli 14-26 mm longi, pilosi; alabastra globosa, ca 12 mm diametro; calycis segmenta 3, chartacea glabra persistentia; petalum glabrum, unguiculo ca 4 mm longo, lamina ovali, ca 20 mm longa et 16 mm lata, basi cordata; stamina maiora 2 glabra, filamentis ca 17 mm longis, antheris oblongis, ca 2.5 mm longis, apiculatis, staminibus minoribus glabris, antheris apiculatis; gynoecium glabrum, stylo ca 4 mm longo, ovario elliptico, ca 10 mm longo et 4.5 mm lato, gynophoro ca 9 mm longo; fructus glaber subtiliter tessellatus ovalis, 2-3 cm longus, 1.5-2 cm diametro, reliquis styli ca 5 mm longis, persistentibus, carpo-phoro glabro, 12-15 mm longo; semina 1, elliptica, ca 2 cm longa et 1 cm diametro, fusco-fulvo-nigra nitida, arillo albo, ca 15 cm diametro.

  • Discussion

    The intramarginal nerve of the leaflets in this species links it with its nearest relatives S. iniridensis and S. floribunda. Of these the latter is perhaps the nearer; at least it has the glabrous gynoecium of S. buntingii. This new species differs from both its relatives in its foliaceous stipules and/ or its plane leaflets. The marginal vein common to all three is absent in S. pendula, another relative; this also has minute, appressed hairs whereas S. buntingii has several parts pilose. The specific name is given in honor of George S. Bunting who collected the paratypes with Maguire.

  • Distribution

    (Fig. 43). Lowland rain forest in southern Venezuela, 100-150 m alt.

    Venezuela South America| Amazonas Venezuela South America|