| 释义 |
- Description
- Distribution and habitat
- Threats
- References
{{Speciesbox
| image =
| image_caption =
| genus = Rhodolaena
| species = acutifolia
| authority = Baker
| synonyms =
}}Rhodolaena acutifolia is a plant in the family Sarcolaenaceae. It is endemic to Madagascar. The specific epithet {{lang|la|acutifolia}} is from the Latin meaning "sharp-leafed". DescriptionRhodolaena acutifolia grows as a small tree or shrub.[2] Its leaves are small, subcoriaceous, elliptic in shape, tapering to a point and sharp at the base. They measure up to {{convert|3|cm|in|1}} wide.[3] The flowers are paired in solitary inflorescences on a long stem.[2][3] Individual flowers are very large with bright purple-pink petals, measuring up {{convert|5|cm|in|0|abbr=on}} long.[2] The fruits are dark green, drying black.[3]Distribution and habitatRhodolaena acutifolia is only found in the east central regions of Analamanga, Alaotra-Mangoro and Analanjirofo.[ Its habitat is humid evergreen forests from {{convert|350|m|-3|abbr=on}} to {{convert|800|m|-2|abbr=on}} altitude. Two subpopulations of the trees are in Zahamena National Park.[2]]ThreatsRhodolaena acutifolia is threatened by harvesting for timber. Due to shifting cultivation, future habitat loss is predicted at up to 50%. The preliminary status of the species is Vulnerable.[2]References1. ^1 2 3 4 5 {{cite web | last1 = Birkinshaw | first1 = Chris | last2 = Andrianjafy | first2 = Mamisoa | last3 = Edmond | first3 = Roger | last4 = Hong-Wa | first4 = Cynthia | last5 = Rajeriarison | first5 = Charlotte | last6 = Schatz | first6 = George | date = July 2004 | title = Red Lists for Malagasy Plants. V: Rhodolaena (Sarcolaenaceae) | url = http://www.mobot.org/MOBOT/Research/red_list_rhodolaena.pdf | publisher = Missouri Botanical Garden | page = 9 | accessdate = 23 Oct 2016 }}
2. ^1 2 3 {{cite journal | last1 = Schatz | first1 = George E. | last2 = Lowry II | first2 = Porter P. | last3 = Wolf | first3 = Anne-Elizabeth | date = 2000 | title = Endemic families of Madagascar. VI. A synoptic revision of Rhodolaena (Sarcolaenaceae) | url = http://sciencepress.mnhn.fr/sites/default/files/articles/pdf/a2000n2a11.pdf | journal = Adansonia | publisher = Publications Scientifiques du Muséum national d'Histoire naturelle | location = Paris | series = 3 | volume = 22 | issue = 2 | pages = 242–243 | accessdate = 23 Oct 2016 }}
[1][2]
}}{{Taxonbar|from=Q15565773}} 3 : Rhodolaena|Endemic flora of Madagascar|Plants described in 1884 |