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单词 loganiaceae
释义

Loganiaceae


Thesaurus
Noun1.Loganiaceae - a dicotyledonous family of plants of order Gentianalesfamily Loganiaceaedicot family, magnoliopsid family - family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germinationGentianales, order Gentianales - an order of dicotyledonous plants having gamopetalous flowers; Gentianaceae; Apocynaceae; Asclepiadaceae; Loganiaceae; Oleaceae; Salvadoraceaegenus Logania, Logania - type genus of the Loganiaceae; Australian and New Zealand shrubs sometimes cultivated for their flowersgenus Buddleia - shrubs or trees of warm regionsGelsemium, genus Gelsemium - evergreen twining shrubs of Americas and southeastern Asia

Loganiaceae


Loganiaceae

[lō‚gān·ē′ā·sē‚ē] (botany) A family of mostly woody dicotyledonous plants in the order Gentianales; members lack a latex system and have fully united carpels and axile placentation.

Loganiaceae

 

a family of dicotyledonous plants. They are trees and shrubs; some are lianas or herbs. The leaves are opposite, simple, and entire. The flowers are bisexual and generally regular; the calyx and the corolla are usually five- or three-parted. The gynoecium consists of two or, rarely, three carpels; the ovary is usually superior but sometimes half-inferior. The fruit is a capsule or berry; rarely is it a drupe.

There are approximately 20 genera (more than 450 species), distributed in the tropical and subtropical regions of both hemispheres. No wild species are found in the USSR or Western Europe. Many species are poisonous and contain alkaloids; the nux vomica tree (Strychnos nux vomica) is of medical importance. Some Loganiaceae are ornamental. To the Loganiaceae are often assigned only six genera (about 100 species); the remaining genera are classified in other families, including Strychnaceae and Potaliaceae.

REFERENCE

Takhtadzhian, A. L. Sistema i filogeniia tsvetkovykh rastenii. Moscow-Leningrad, 1966.

Loganiaceae


  • noun

Synonyms for Loganiaceae

noun a dicotyledonous family of plants of order Gentianales

Synonyms

  • family Loganiaceae

Related Words

  • dicot family
  • magnoliopsid family
  • Gentianales
  • order Gentianales
  • genus Logania
  • Logania
  • genus Buddleia
  • Gelsemium
  • genus Gelsemium
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更新时间:2025/1/31 15:05:33