Record display
PROTA4U Homepage| Select translation pop-up: |
|
|
PROTA4U Record display |
PROTA4U Homepage
|
| Bull. Jard. Bot. Etat 24: 148, f. 16 (1954). | |||
| show more data (1) | comments (0) |
| Apocynaceae | |||
| show more data (1) | comments (0) |
| show more data (1) | comments (0) |
| show more data (1) | comments (0) |
| Alafia nigrescens is endemic to northern Madagascar. | |||
| show more data (0) | comments (0) |
| The long stems provide a tenacious binding material traditionally used in the construction of houses and bridges. | |||
| show more data (0) | comments (0) |
| The stems are only used locally. | |||
| show more data (0) | comments (0) |
| Large, laticiferous liana. Leaves opposite, simple and entire; petiole 3.5–7 mm long, base broadened and surrounding the stipules; stipules forming a semi-collar; blade elliptical, 6–11 cm × 3–4.5 cm, base somewhat rounded and angular, apex acuminate, thin, lateral veins in 7–10 pairs, straight, connected by a submarginal vein. Inflorescence a few-flowered, lax, terminal cyme on an indeterminate flowering branch; peduncle 1–7 mm long; bracts c. 1 mm long. Flowers bisexual, regular, 5-merous; pedicel 2.5–4 mm long; sepals ovate, 1.5–2 mm long, with stipitate glands on the inside; corolla white, tube cylindrical, 5.4–6.7 mm × 1.5 mm, base swollen, narrower at the throat, with 5 thickened bands from throat to base of lobes, lobes linear-oblong, 6–8 mm × 1.5–3 mm; stamens inserted at base of corolla tube, filaments short, anthers arrow-shaped, 3–4 mm long; ovary superior, of 2 free carpels, broadly conical, c. 0.8 mm long. Fruits unknown. Flowering occurs from October to December. Alafia comprises 23 species, 15 of which occur in continental Africa and 8 in Madagascar. | |||
| show more data (0) | comments (0) |
| Alafia nigrescens occurs from sea-level up to 500 m altitude in shady or open places in dry to humid forest. | |||
| show more data (0) | comments (0) |
| Alafia nigrescens only occurs wild. The stems are sometimes passed through fire before use. | |||
| show more data (0) | comments (0) |
| Alafia nigrescens is a rare plant, collected from only a few locations. However, it is not listed in the IUCN Red list. It is protected in two conservation areas. | |||
| show more data (0) | comments (0) |
| Little is known about Alafia nigrescens, making it difficult to assess it prospects. It is likely, however, that the plant will remain of occasional local importance only. | |||
| show more data (0) | comments (0) |
| • Boiteau, P., Boiteau, M. & Allorge-Boiteau, L., 1999. Dictionnaire des noms malgaches de végétaux. 4 Volumes + Index des noms scientifiques avec leurs équivalents malgaches. Editions Alzieu, Grenoble, France. • Leeuwenberg, A.J.M., 1997. Series of revisions of Apocynaceae 43. Alafia Thouars. Kew Bulletin 52(4): 769–839. • Markgraf, F., 1976. Apocynaceae. Flore de Madagascar et des Comores, famille 169. Muséum National d’Histoire Naturelle, Paris, France. 318 pp. | |||
| show more data (0) | comments (0) |
| • Pichon, M., 1954. Révision du genre Alafia Thou. Bulletin du Jardin Botanique de l’État (Bruxelles) 24: 129–222. • Watson, L. & Dallwitz, M.J., 1992–. The families of flowering plants: descriptions, illustrations, identification, and information retrieval. [Internet]. http://delta-intkey.com. Accessed September 2009. | |||
| show more data (0) | comments (0) |
| |||||
| |||||||
| Oyen, L.P.A., 2010. Alafia nigrescens Pichon. [Internet] Record from PROTA4U. Brink, M. & Achigan-Dako, E.G. (Editors). PROTA (Plant Resources of Tropical Africa / Ressources végétales de l’Afrique tropicale), Wageningen, Netherlands. <http://www.prota4u.org/search.asp>. Accessed . | |||
| There are 12 study abstracts related to Agave sisalana Perrine. Click on "show more" to view them. | ||
| show more data | comments (0) |
| There are 300 book citations related to Agave sisalana Perrine. Click on "show more" to view them. | ||
| show more data | comments (0) |
| There are 201 citation in web searches related to Agave sisalana Perrine. Click on "show more" to view them. | ||
| show more data | comments (0) |
| There are 173 citation in scholarly articles related to Agave sisalana Perrine. Click on "show more" to view them. | ||
| show more data | comments (0) |
| There are 62 news article citations related to Agave sisalana Perrine. Click on "show more" to view them. | ||
| show more data | comments (0) |
| There are 34 citations in Afrirefs related to Agave sisalana Perrine. Click on "show more" to view them. | ||
| show more data | comments (0) |
| There are 21 Wikipedia citations related to Agave sisalana Perrine. Click on "show more" to view them. | ||
| show more data | comments (0) |
| General importance |  |
| Geographic coverage Africa | |
| Geographic coverage World | |
| Fibre use | |
| Conservation status |  |
Comments (