Castanopsis
Castanopsis, commonly called chinquapin or chinkapin, is a genus of evergreen trees belonging to the beech family, Fagaceae. The genus contains about 140 species, which are today restricted to tropical and subtropical eastern Asia. The English name chinkapin is shared with other related plants, including the golden chinkapins of the Pacific Northwest, which are sometimes included within Castanopsis but are more often considered a separate but very closely related genus, Chrysolepis.
Species
GENUS
- KingdomPlantae
- PhylumTracheophyta
- ClassMagnoliopsida
- OrderFagales
- FamilyFagaceae
Native toAssam, Bangladesh, Bismarck Archipelago, Borneo, Cambodia, China South-Central, China Southeast, East Himalaya, Hainan, Japan, Jawa, Korea
Castanopsis est un genre d'arbres à feuillage persistant, appartenant à la famille des fagacées. Le genre Castanopsis réunit environ 120 espèces, toutes originaires d'Asie tropicale et pénétropicale. Près de soixante espèces sont originaires de Chine, dont la moitié sont endémiques ; les autres espèces sont réparties plus au sud, de l'Indochine à l'Indonésie, ou plus à l'est comme en Corée et au Japon. La plupart sont des essences nobles très appréciées comme bois d'œuvre, et plusieurs d'entre elles produisent des glands comestibles. Sommaire 1 Description 2 Étymologie 3 Informations nomenclaturales 4 Noms indigènes 5 Liste d'espèces 6 Liens internes 7 Notes et références 8 Liens externes Description Fleurs mâles (gauche) et femelles (centre) de Castanopsis sieboldii Fruits de Castanopsis sieboldii Les arbres de ce genre sont tous sempervirents[2], c'est-à-dire à feuilles persistantes. Ces dernières sont produites par des bourgeons de forme ovoïde, et ont une disposition alterne, distique ou plus rarement spirale le long de la tige[2]. Les inflorescences sont généralement unisexuées, érigées, et sous forme d'épi ou de panicule : Les fleurs mâles sont disposées en groupes de 3 à 7[2
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Article
10 sectionsContents
- Description
- Species
- Formerly placed here
- Fossil record
- Distribution and habitat
- Ecology
- Uses
- In culture
- References
- External links
Castanopsis, commonly called chinquapin or chinkapin, is a genus of evergreen trees belonging to the beech family, Fagaceae. The genus contains about 140 species, which are today restricted to tropical and subtropical eastern Asia. The English name chinkapin is shared with other related plants, including the golden chinkapins of the Pacific Northwest, which are sometimes included within Castanopsis but are more often considered a separate but very closely related genus, Chrysolepis.
== Description == They show many characters typical of Fagaceae. They are at least large shrubs but some species grow into sizeable trees. Their leaves are usually tough and much sclerotized and have a well-developed cuticula. Their flowers are unisexual, and the male ones are borne in erect catkins. The epigynous female flowers produce a single seed each but are congregated in small clusters. The fruit is a calybium, the kind of encased nut typical of Fagaceae. The calybium (nut) resembles a pointed acorn; the cupule (casing) is hard like that of beechnuts and spiny like that of chestnuts. Three thickened ridges run the length of the calybium's shell.