Alyxia
Alyxia is a genus of flowering plants in the family, Apocynaceae. It contains at present 106 species, but Alyxia stellata and A. tisserantii are very variable, might be cryptic species complexes, and are need of further study. It consists of shrubby, climbing or scrambling plants. This genus occurs in China, the Himalayas, Southeast Asia, Australia, New Caledonia and the Pacific Islands. There are 14 species in Australia, 21 in New Caledonia and 7 in the other Pacific Islands, including Hawaii.
Species
GENUS
- KingdomPlantae
- PhylumTracheophyta
- ClassMagnoliopsida
- OrderGentianales
- FamilyApocynaceae
Native toAndaman Is., Assam, Bangladesh, Bismarck Archipelago, Borneo, Cambodia, Caroline Is., China South-Central, China Southeast, Cook Is., East Himalaya, Fiji
Alyxia es un género de fanerógamas de la familia Apocynaceae. Contiene 106 especies nativas del sudeste de Asia, a Himalaya, China, Malasia, Australia y Nueva Caledonia. Índice 1 Descripción 2 Taxonomía 3 Especies seleccionadas 4 Referencias 5 Enlaces externos Descripción Son arbustos trepadores de largas ramas con hojas opuestas o en conjunto de 3-7. Las inflorescencias son axilares o terminales con flores solitarias o simples en cimas. Tiene 5 sépalos y 5 pétalos. El fruto es un par de drupas. Fruta de A. oliviformis. Fruta de A. ruscifolia. Taxonomía El género fue descrito por Banks ex R.Br. y publicado en Prodromus Florae Novae Hollandiae 469. 1810.[2] Especies seleccionadas Alyxia acuminata K.Schum. (1889) Alyxia angustifolia Ridl. (1915) Alyxia angustissima Merr. & Quisumb. (1954) Alyxia annamensis Pit. (1933) Alyxia arfakensis Kaneh. & Hatus. (1941) Alyxia baillonii Guillaumin (1941) Alyxia balansae Pit. (1933) Alyxia bracteolosa Rich. ex A.Gray (1862) Alyxia buxifolia R.Br. (1810) Alyxia cacuminum Markgr. (1925) Alyxia caletioides (Baill.) Guillaumin (1941) Alyxia celebica D.J.Middleton (2000) Alyxia clusiophylla (Baill.) Guillaumin (1934) Alyxia composita Warb. (1
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Article
2 sectionsContents
- Species
- References
Alyxia is a genus of flowering plants in the family, Apocynaceae. It contains at present 106 species, but Alyxia stellata and A. tisserantii are very variable, might be cryptic species complexes, and are need of further study. It consists of shrubby, climbing or scrambling plants. This genus occurs in China, the Himalayas, Southeast Asia, Australia, New Caledonia and the Pacific Islands. There are 14 species in Australia, 21 in New Caledonia and 7 in the other Pacific Islands, including Hawaii.
The leaves are opposite or in whorls of three to seven. There are colleters (groups or tufts of mucilaginous secretory hairs) present in the leaf axils. The inflorescence is axillary or terminal with solitary flowers or simple cymes. Flowers consist of five petals and five sepals. The flowers have a slender tube which expands abruptly. The stamens have short filaments and are inserted in the upper half of the corolla. The fruit is a pair of drupes, originating from each flower.