Dehaasia
| Dehaasia | |
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| Tree with the white bark in Taiping (Malaysia) | |
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| Genus: | Dehaasia |
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see text | |
Dehaasia is a genus of evergreen or deciduous trees or shrubs belonging to the Laurel family, Lauraceae. It is a botanical genus to 53 species of flowering plants belonging to the family Lauraceae. Distributed from continental Asia, from India to China, and islands from Borneo, New Guinea, Java, and Indonesia. The genus was described by Carl Ludwig Blume and published in Rumphi 1: 161 in 1837. (Jun 1837).[1]
Characteristics
About 35 species in Cambodia, China, Indonesia, Laos, Malaysia, Myanmar, Philippines,[2] Thailand, Vietnam, with the center of diversity in west Malaysia; three species in China, two endemic.[3][4] Alseodaphne, Dehaasia and Nothaphoebe are, morphologically, three closely related but distinct genera near to the Persea subgroup of the Lauraceae. Shrubs or small hermaphrodite trees, up to 5 m tall. They are bush or trees of medium size.[5] in tropical montane forest, lowland rainforest,[6] subtropical coastal lowland rainforest, Cloud forest, and Laurel forest. The leaves are bright green to dark green, shiny and alternate.[7][8] The bark is usually whitish[9] to grey, soft, papery, peels easily, with the xylem yellow. Branchlets yellow-white initially but soon grayed, slender, glabrous, warty, lenticellate, with distinctive leaf scars; young ones more or less angled;[10] innovation covered with long and finely appressed hairs. White twigs, thin and stiff, with visible signs of scarring produced by the leaves.[11][12] The sheets are grouped at the apex of the twig: The inflorescences in tassels arm, generally thin with many bracts with few flowers, usually upright and branched at right angles.[13][14] The fruit is black-dark and shiny, generally scarlet but sometimes yellow or green.[15] Usually ovoid, rarely globose with an exocarp fleshy and meaty. Some species have a red or scarlet dome.[16] The dispersal of seeds is due to birds that swallow them, so the berries are shaped to attract the birds. The fruits are an important food source for some birds.
Selected species
Some names in the repository Global Names Index of uBio:[17]
- Dehaasia acuminata Koord. & Valeton
- Dehaasia annamensis Kosterm.
- Dehaasia assamica Kosterm.
- Dehaasia borneensis Fern.-Vill.
- Dehaasia brachybotrys (Merr.) Kosterm.
- Dehaasia Blume, 1837.
- Dehaasia caesia Blume.
- Dehaasia cairocan (Vidal) C.K. Allen.
- Dehaasia candolleana (Meisn.) Kosterm.
- Dehaasia celebica Kosterm.
- Dehaasia chatacea
- Dehaasia corynantha Kosterm.
- Dehaasia cuneata
References
- ^ "Name - !!Dehaasia Blume". Tropicos. Retrieved 2011-11-11.
- ^ http://plants.jstor.org/specimen/mo-247194
- ^ http://flora.huh.harvard.edu/china/PDF/PDF07/Dehaasia.pdf
- ^ http://www.cvh.org.cn/lsid/index.php?lsid=urn:lsid:cvh.org.cn:names:g_1986
- ^ http://flora.huh.harvard.edu/china/PDF/PDF07/Dehaasia.pdf
- ^ http://www.wildsidephotography.ca/gallery/Database/26000_G
- ^ http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=109471
- ^ http://www.efloras.org/object_page.aspx?object_id=112365&flora_id=2
- ^ http://flora.huh.harvard.edu/china/pdf/pdf07/Dehaasia.pdf
- ^ http://flora.huh.harvard.edu/china/pdf/pdf07/Dehaasia.pdf
- ^ http://www.jstor.org/discover/10.2307/4111844?uid=3737952&uid=2&uid=4&sid=47699015062327
- ^ http://www.cvh.org.cn/lsid/index.php?lsid=urn:lsid:cvh.org.cn:names:cnpc_62988&vtype=tax,img,spm,ref,link
- ^ http://flora.huh.harvard.edu/china/pdf/pdf07/Dehaasia.pdf
- ^ http://www.efloras.org/object_page.aspx?object_id=112365&flora_id=2
- ^ http://131.230.176.4/cgi-bin/dol/dol_terminal.pl?taxon_name=Dehaasia_cairocan&rank=binomial
- ^ http://www.phytoimages.siu.edu/imgs/pelserpb/r/Lauraceae_Dehaasia_cairocan_24856.html
- ^ "Global Names Index". Gni.globalnames.org. Retrieved 2011-11-11.
External links
- Dehaasia en eFlora
- A synopsis of the genus Dehaasia Bl. (Lauraceae)
- Chemical constituents from Dehaasia triandra. 1. Three new alkaloids, isocorydione, norisocorydione, and dehatriphine, from the leaves
- Chemical constituents from Dehaasia triandra. II. Five new alkaloids, secoxanthoplanine, dehydroisocorydione, 11, 8′-O-bisisocorydine,(8, 8′-R)-and (8, 8′-S)