| 释义 |
- Description
- Distribution and habitat
- Threats
- References
{{Speciesbox
| image =
| image_caption =
| genus = Rhodolaena
| species = macrocarpa
| authority = G.E.Schatz, Lowry & A.-E.Wolf
| synonyms =
}}Rhodolaena macrocarpa is a tree in the family Sarcolaenaceae. It is endemic to Madagascar. The specific epithet {{lang|la|macrocarpa}} is from the Latin meaning "large-fruited". DescriptionRhodolaena macrocarpa grows as a tree up to {{convert|10|m|-1}} tall. The branches are glabrous. Its leaves, also glabrous, are elliptic in shape, dry olive green and measure up to {{convert|11.2|cm|0|}} long. The inflorescences have a single flower, uniquely for the genus, on a peduncle measuring up to {{convert|7.5|cm|in|0|abbr=on}} long.[2] Individual flowers are large with five sepals and five purple-red petals, measuring up to {{convert|5|cm|in|0|abbr=on}} long. The round fruits are large and woody, measuring up to {{convert|1.7|cm|in|0|abbr=on}} in diameter, with a fleshy involucre. The fruit is the largest of the genus.[2][4]Distribution and habitatRhodolaena macrocarpa is known only from the northern region of Sava.[ Its habitat is humid evergreen forest at around {{convert|150|m|-2}} altitude.[4]]ThreatsRhodolaena macrocarpa is threatened by timber exploitation. Future population decline of the tree due to habitat loss is predicted at greater than 80%. The single population of the species is not in a protected area. The preliminary status of the species is Critically Endangered.[4]References1. ^1 2 {{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 = 247, 248, 250–251 | accessdate = 25 Oct 2016 }}
2. ^1 2 3 {{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 = 16 | accessdate = 25 Oct 2016 }}
[1][2]
}}{{Taxonbar|from=Q15607684}} 4 : Rhodolaena|Endemic flora of Madagascar|Trees of Madagascar|Plants described in 2000 |