Swartzia dolichopoda 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 dolichopoda R.S.Cowan

  • Type

    Type collection. B. Maguire, J. J. Wurdack, & G. S. Bunting 36214 (holotype US 2253832; isotype NY), right bank of Caño Cupueni (tributary of the Río Orinoco along the right bank, opposite mouth of the Río Atabapo), Amazonas, Venezuela, Nov. 1953.

  • Description

    Latin Diagnosis - Arbor 10-15 m alta, ramulis minute malpighio-strigulosis glabrescentibus; stipulae caducae triangulares, 0.4-0.5 mm longae lataeque, minute malpighio-strigulosae externe; folia unifoliolata, petiolis teretibus, (1.5-)4-6 mm longis, transverse rugulosis minute malpighio-strigulosis, petiolulis 3-6 mm longis, malpighio-strigulosis minute, laminis 7.5-14 cm longis, 4-7 cm latis, ellipticis, base rotundatis subobtusis ad obtusis, apice abrupte breviter acutis, extremitate obtuso, faciebus superioribus glabris infra glaucis et malpighio-strigulosis minute, venis obscuris costa impressa supra, infra saliente; inflorescentiae axillares et terminales racemosae vel paniculato-racemosae, (5-)9-16.5 cm longae, axe dense malpighio-striguloso minute, bracteis persistentibus, 1.5-2.5 mm longis, 0.8-1.5 mm latis, lanceolatis acutis extus minute malpighio-strigulosis intus glabris bracteolis persistentibus ad pedicellum ca 3/4 supra basim nascentibus, 0.5-1.5 mm longis, lanceolatis acutis minute malpighio-strigulosis externe; pedicelli 7-9 mm longi, clavati lateraliter compressi minute sulcati minute malpighio-strigulosis; alabastra globosa ad ovalia apiculata, 6-7 mm diametro, minute malpighio-strigulosa; calycis segmenta 3 vel 4, decidua minute malpighio-strigulosa externe intus glabra; petala lutea glabra, unguiculo 4-5.5 mm longo, lamina suborbiculari ad oblata basi rotundata sed postremo acuta, 6-7 mm longa, 8-9.5 mm lata; stamina maiora 4-6 glabra, filamentis 12 mm longis, antheris ovalibus, 1-1.5 mm longis, 0.6-0.8 mm latis, minora glabra, filamentis 6 mm longis; gynoecium glabrum, stigmate punctiformi, stylo 1-2 mm longo, ovario 4-5 mm longo, ca 1.5 mm lato, fusiformi-elliptico, arcuato, gynophoro 8-13.5 mm longo; fructus non visus.

  • Discussion

    The relatively broader leaflets, which are glaucous beneath, the pubescence and form of the buds, and the elongate gynophore are distinguishing characteristics of the new species, which separate it quite readily from its nearest relative, S. racemosa.

  • Distribution

    (Fig. 21). Known only from the type locality in west-central Venezuela at 120-130 m alt.

    Venezuela South America| Amazonas Venezuela South America|