貝葉棕亞科(學名:Coryphoideae)是棕櫚科下的一個亞科。包括有喬木和灌木,單幹或叢生。葉為扇形或近圓形、近心形,掌狀分裂,少數種類不分裂或羽狀分裂;裂片向內摺疊,少數外向摺疊。花兩性、單性或雜性,雌雄異株;花在花序分枝節上單朵或2朵並生(合軸狀分枝),花序外由苞片組成的佛焰苞所包圍或部分包圍,絕無3朵並生現象(即中間1朵雌花,兩側各1朵雄花);雄蕊多枚或6枚;心皮3枚,離生或各種合生。核果含種子1~3粒。
分類
在棕櫚科之中,本亞科與檳榔亞科及蠟椰亞科的關係最為親近。棕櫚科各亞科的親緣關係如下(節點有「*」標誌的分支表示其自助法支持率介於50-80%之間,無標誌者為80%以上)[1]:
內部分類
本亞科共有44個屬,可歸類於8個族[2][3][4]:
- 糖棕族 Borasseae Mart., 1837
- 魚尾葵族 Caryoteae Drude, 1877
- 瓊棕族 Chuniophoeniceae J.Dransf., N.W.Uhl, C.Asmussen, W.J.Baker, M.M.Harley & C.Lewis, 2005
- 貝葉棕族 Corypheae Mart., 1837
- 叉刺棕族 Cryosophileae J.Dransf., N.W.Uhl, C.Asmussen, W.J.Baker, M.M.Harley & C.Lewis, 2005
- 蒲葵族 Livistoneae J.Dransf., N.W.Uhl, C.Asmussen, W.J.Baker, M.M.Harley & C.Lewis, 2005
- 刺葵族 Phoeniceae J.Presl, 1846
- 菜棕族 Sabaleae Mart. ex Dumort.. 1829
依據其DNA分析,貝葉棕亞科各族的演化關係如下[2]:
參考文獻
- ^ Arecales. In Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008 [and more or less continuously updated since].
- ^ 2.0 2.1 Asmussen, C.B., Dransfield, J., Deickmann, V., Barford, A.S., Pintaud, J.-C. & Baker, W.J. (2006) A new subfamily classification of the palm family (Arecaceae): evidence from plastid DNA phylogeny. Botanical Journal of the Linnean Society, 151: 15–38. doi:10.1111/j.1095-8339.2006.00521.x PDF
- ^ Dransfield, J., Uhl, N.W., Asmussen, C.B., Baker, W.J., Harley, M.M. & Lewis, C.E. (2005) A New Phylogenetic Classification of the Palm Family, Arecaceae. Kew Bulletin, 60 (4): 559-569. JSTOR Stable PDF
- ^ Dransfield, J., Uhl, N.W., Asmussen, C.B., Baker, W.J., Harley, M.M., & Lewis, C.E. (2008) Genera palmarum: The Evolution and Classification of Palms. Kew Publishing: Royal Botanic Gardens, Kew.
外部連結