Coryphoideae
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The Coryphoideae is one of five subfamilies in the palm family, Arecaceae.[1][2][3] It contains all of the genera with palmate leaves, excepting Mauritia, Mauritiella and Lepidocaryum, all of subfamily Calamoideae, tribe Lepidocaryeae, subtribe Mauritiinae.[4][3][2] However, all Coryphoid palm leaves have induplicate (V-shaped) leaf folds (excepting Guihaia), while Calamoid palms have reduplicate (inverted V-shaped) leaf folds.[3] Pinnate leaves do occur in Coryphoideae, in Phoenix, Arenga, Wallichia and bipinnate in Caryota.
Coryphoids are well-represented in the fossil record from the Late Cretaceous (Campanian) onwards, primarily due to the presence of the form genus Sabalites.[5]
Classification
Subfamily Coryphoideae is divided into 8 tribes:[2]
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The genus Sabinaria was discovered and described after the classification used here[2][3] was published, but its morphology clearly places it in tribe Cryosophileae.[6] The genus Saribus was split from Livistona,[7] while Lanonia was split from Licuala,[8] also after publication. Tribe Trachycarpeae was initially described as tribe 'Livistoneae',[2] but the name Trachycarpeae has priority.[3] Also Uhlia is an extinct genus described from permineralized remains recovered from the Ypresian Princeton Chert in British Columbia, Canada.[9]
References
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External links
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