Swartzia haughtii 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 haughtii R.S.Cowan

  • Type

    Type collection. 0. Haught 3491 (holotype US 1708176, hills south of Olmedo, Prov. Manabi, Ecuador, Sept. 1942.

  • Description

    Latin Diagnosis - Arbor 10-20 m alta, ramulis dense pilosulosis mox glabrescentibus; stipulae caducae, 6.5-10 mm longae, 1.5-2 mm latae, lanceolatae acuminatae dense strigu-losae externe, intus glabrae; petioli 3.5-5 cm longi, pilosulosi stipellati, rhachibus 14.5-23 cm longis, marginatis ad anguste alatis stipellatis basi jugorum; foliola 5-8-jugata, petiolulis 3-4 mm longis, dense pilosulosis, laminis jugorum basalium brevioribus, 6.5-9 cm longis, ovalibus, aliis laminis 9-15 cm longis, 4.5-7.5 cm latis, ellipticis ad oblongo-ellipticis saepe basi rotundato-obtusis apicaliter abrupte acutis extremitate obtuso vel acuto, faciebus ambobus vel solum infra strigulosis, supra costa venisque obscuris planis, infra salientibus; inflorescentiae ramigerae vel cau-ligerae fasciculato-racemosae, 8-29 cm longae, axe striguloso, bracteis deciduis, 2 mm longis, triangularibus acutis, bracteolis ad apicem versus pedicellorum nascentibus, ca 0.5 mm longis, anguste triangularibus externe strigulosis; pedicelli 12-20 mm longi, minute strigulosi; alabastra globosa, 8-9 mm diametro, strigulosa; calycis segmenta 4 persistentia extus strigulosa intus glabra; petalum luteum, unguiculo 1.5-2 mm longo, lamina 25-35 mm longa et lata late-ovata cordata extus plus minusve villosa principaliter in venis, intus glabra; stamina maiora 2-4, filamentis 20-25 mm longis leviter villosis, antheris 3 mm longis, oblongis, minora glabra, 10-12 mm longa; gynoecium glabrum gynophoro excepto, stigmate capitato, stylo 4-7 mm longo, ovario arcuato-lineari, ca 20 mm longo et 1 mm lato, gynophoro 7-12 mm longo, leviter villoso; fructus moniliformis, 16-40 cm longus, ca 2 cm latus, glaber, 4-9-seminatus, stipite glabro, ca 15 mm longo; semina 2.5-3 cm longa, ca 1.8 cm lata.

  • Discussion

    The Acosta Solis collection is slightly different in having more numerous primary veins, but this is not by itself sufficient to warrant more than passing mention.

    As noted under S. robiniifolia, S. haughtii is clearly related to that species, differing in the size of bracts and bracteoles, the size of the petal, and in the posture of the pubescence. Similar differences exist between S. haughtii and S. macrosema, as discussed more fully under the latter species.

  • Distribution

    (Fig. 6). Open woods of coastal plain north of Guayaquil, Ecuador, 50-300 m alt.

    Ecuador South America| Los Ríos Ecuador South America|