Zygia latifolia var. lasiopus

  • Title

    Zygia latifolia var. lasiopus

  • Authors

    Rupert C. Barneby

  • Scientific Name

    Zygia latifolia var. lasiopus (Benth.) Barneby & J.W.Grimes

  • Description

    48c. Zygia latifolia var. lasiopus  (Bentham) Barneby & Grimes, comb. et stat. nov. Pithecolobium lasiopus Bentham, London J. Bot. 2: 141. 1840. — "British Guiana. Schomburgk, n. 487." — Holotypus, K!; isotypus, OXF!. mann & Kappler]

    Inga ramiflora Steudel, Flora 36(1): 759.1843. — "... [Hostmann & Kappler] nr 1173 ... [im Innem von Surinam...]." — Holotypus, P!; isotypus, NY!. — Non Inga ramiflora G. Don, 1832; nec Pithecolobium ramiflorum Bentham, 1844, quae = Zygia ramiflora (Bentham) Barneby & Grimes. Pithecolobium lasiopus sensu Bentham, London J. Bot. 3: 214. 1844, the description amplified, and an isotypus of Inga ramiflora Steudel, 1843, (Hostmann 1173) included; later reduced by Bentham (1875: 596) to P. cauliflorum, as ‘forma puberula.”

    Lfts either 3 or 5 per pinna, the distal pair of larger lvs (4—)4.5-11.5(-13) x (2-)2.5-5.5(-6) cm; calyx hemispherical or campanulate 0.4—1.7(—2) mm long; corolla 5-7(-8) mm, the tube as well as the lobes hirtellous or ascending-pilosulous; pod when well fertilized (7—)9—16(—17) x 1.2-1.6 cm.

    In seasonally flooded forest, on riverbanks, and in the understory of gallery woodland, below 200 m, common and locally abundant in both coastal and interior Guyana, Surinam, French Guiana, and lower Amazonian Brazil, extending with less frequency into Venezuelan Guayana, and SW to the NW comer of Mato Grosso and SW state of Amazonas, Brazil; once recorded from E Peru (lower Ucayali valley). — Map 37. — Flowering intermittently throughout the year.

    Indifferent specimens from the Federal District in Brazil (Río Preto, Heringer 9278, NY, in young flower) are technically referable to var. lasiopus by leaf-formula and puberulent corolla. Only var. glabrata could logically be expected near the latitude of Brasilia. The record is omitted from the map and determination deferred until the plant is better known.