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Ireland is in the Atlantic European Province of the Circumboreal Region, a floristic region within the Holarctic. ==Composition of the Flora== Ireland has a small flora for a European country because of its small size, lack of geological and ecological variation and its Pleistocene history. There are 3,815 species of plant listed for Ireland: *Phylum Anthocerotophyta – hornworts: 3 species *Phylum Bryophyta – mosses: 556 species *Phylum Charophyta – charophytes: 244 species *Phylum Chlorophyta – green algae: 148 species *Phylum Lycopodiophyta – clubmosses: 9 species *Phylum Magnoliophyta – flowering plants: 2,196 species *Phylum Marchantiophyta – liverworts: 229 species *Phylum Pinophyta – pines: 12 species *Phylum Pteridophyta – ferns: 79 species *Phylum Rhodophyta – red algae: 339 species An additional 2,512 species of fungus occur in Ireland. *Phylum Acrasiomycota – cellular slime molds: 1 species *Phylum Ascomycota – sac fungi: 1,115 species *Phylum Basidiomycota – club fungi, mushrooms, shelf fungi, puff balls: 1,228 species *Phylum Chytridiomycota – chytrids: 4 species *Phylum Microsporidia – 1 species *Phylum Myxomycota – plasmodial slime moulds: 112 species *Phylum Oomycota – water moulds: 40 species *Phylum Zygomycota – pin or sugar moulds: 11 species 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Flora of Ireland」の詳細全文を読む スポンサード リンク
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