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Distribution of Gymnosperms
Автор: Advanced Botany
Загружено: 2025-07-02
Просмотров: 262
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#gymnosperms
Gymnosperms include four lineages with living representatives:
Coniferophyta; about 628 species in 70 genera
Cycadophyta; 366 species in 11 genera
Gingkophyta; only one species, Gingko biloba (the maidenhair tree)
Gnetophyta; 112 species in 3 genera (Gnetum, Welwitchia and Ephedra)
Living gymnosperms are distributed worldwide.
The conifers are cosmopolitan.
The cycads are primarily tropical and subtropical.
Ginkgo is confined to a very small native range in China....
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