Франклиния алатамаха: Редкое и Уникальное Дерево

Genus of trees
speciesbox
|image = Franklinia alatamaha. jpg
|image caption = Flower and leaves in autumn
|status = EW
|status system = IUCN3.1
|status ref =
|status2 = GH
|status2 system = TNC
|status2 ref =
|genus = Franklinia
|parent authority = W. Bartram ex Marshall
|species = alatamaha
|authority = W. Bartram ex Marshall Hybrid crosses have been produced between Franklinia alatamaha and Gordonia lasianthus, and between Franklinia alatamaha and Schima argentea.

Franklinia alatamaha is a small deciduous tree growing to tall, but commonly It is prized for its fragrant white flowers, similar to single white Camellia blossoms; the smell may remind some of orange blossoms or honeysuckle. The tree has a symmetrical, somewhat pyramidal shape, often with different individuals of the species forming almost identical crowns. It frequently suckers and can form several vertical trunks close to ground level. The bark is gray with vertical white striations and has a ridged texture. The alternate, obovate leaves are up to in length and turn a bright orange red in the fall. Although difficult to transplant, once established, F. alatamaha can live a century or more. The seed capsules require 12–14 months to mature. Unlike almost all angiosperms, Franklinia alatamaha exhibits zygotic dormancy. It pollinates in late summer or early autumn, is then dormant over winter, and only sets fruit during the subsequent summer. Female gametophytes are mature prior to pollination, with double fertilization occurring soon after pollination. The zygote becomes dormant immediately after fertilization with delay of development until the following summer. Initial development of endosperm occurs for up to 3 months after fertilization but comes to a standstill at winter's onset. With onset of the following summer, embryogenesis begins and endosperm development restarts. This overwinter zygotic dormancy is extremely rare among temperate angiosperms. When ripe the pentavalved spherical capsules split above and below in a unique manner.