Renealmia sylvestris Horan.

  • Authority

    Maas, Paulus J. M. 1977. Renealmia (Zingiberaceae--Zingiberoideae), Costoideae (Additions) (Zingiberaceae). Fl. Neotrop. Monogr. 18: 1-218. (Published by NYBG Press)

  • Family

    Zingiberaceae

  • Scientific Name

    Renealmia sylvestris Horan.

  • Type

    Type. a collection of Swartz (holotype, M), from Jamaica, annotated  Amomum sylvestre prod.

  • Synonyms

    Amomum sylvestre Sw., Zingiber sylvestre Stokes, Amomum striatum Stokes, Ethanium silvestre Kuntze

  • Description

    Deprecated: mb_convert_encoding(): Handling HTML entities via mbstring is deprecated; use htmlspecialchars, htmlentities, or mb_encode_numericentity/mb_decode_numericentity instead in /home/emu/nybgweb/www-dev/htdocs/science-dev/wp-content/themes/nybgscience/lib/VHMonographsDetails.php on line 179

    Description - Plants 1.5-2.5 m tall. Rhizomes 7-10 mm thick. Sheaths striate, 10-20 mm wide, glabrous or sparsely covered with simple or furcate prickles (less than 0.1 mm long). Ligule ca 1 mm long. Petiole 20-50 mm long, hairy like the sheaths. Lamina narrowly elliptic, shortly acuminate at the apex (acumen 5-10 mm long), cuneate at the base, (30-)40-66 cm long, (6-)10-16 cm wide, glabrous on both sides. Scape erect, 30-35 cm tall, up to 6 mm thick, beset with sheaths up to 6-10 cm long and 1-1.5 cm wide. Inflorescence a basal raceme 8-20 cm long and 3-5 cm wide. Indument of inflorescence: sheaths, rhachis, bracts, peduncles, bracteoles, pedicels, calyx, corolla, ovary, and capsule glabrous or sparsely covered with simple and sessile, furcate hairs (to 0.1 mm long). Bracts salmon-pink but soon discolored, brown, long-persistent, ovate to broadly ovate and sometimes narrowly ovate, obtuse (to acute), 15-40(-50) mm long, 10-20(-25) mm wide. Peduncles 2-5 mm long. Bracteole cup-shaped, 15-17(-20) mm long. Pedicels 2-5 mm long. Calyx pink to pinkish-white, tubular to slightly turbinate, (15-)18-20(-25) mm long, 7-8 mm (in Proctor 22111 up to 12 mm wide) the lobes deltate, 3-6 mm long. Corolla white to yellowish-white, 22-24 mm long, the tube 14-15 mm long, the lobes 7-9 mm long, ca 5 mm wide. Labellum ca 8 mm long and 3 mm wide when spread out, the apex slightly cucullate, marginal parts on inner side densely covered with simple (and some furcate) hairs (0.1-0.3 mm long), back sparsely so to glabrous, lateral staminodes ca 1 mm long, densely hairy. Anther 8 mm long, 2 mm wide, densely covered with simple (and some furcate) hairs (0.1-0.5 mm long). Style 22 mm long. Nectarial glands multilobulate, completely surrounding the style base, 1.5 mm long. Ovary ellipsoid. Capsule blackish-brown (Proctor 22707), ellipsoid to globose, 10-20 X 8-10 mm, its wall 0.2-0.3 mm thick when dry, 17-20-seeded, seeds 2.5-3 X 3-4 mm.

  • Discussion

    This Jamaican endemic is closely related to R. derma tope tala. It is strongly characterized by its extremely narrow labellum, the lateral lobes of which are not developed.

  • Objects

    Specimen - 01505857, A. J. A. Fredholm 3252, Renealmia sylvestris Horan., Zingiberaceae (61.0), Magnoliophyta; West Indies, Jamaica

  • Distribution

    Jamaica, in rain forests, often in ravines or gullies, between 300 and 850 m.

    Jamaica South America|