Population dynamics of Trillium species in Tohoku district in Japan : I. The field and chromosome researches from the Sashimaki marshland near Lake Tazawa in Akita

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  • 東北地方にみられるエンレイソウ属植物の集団動態 : I.秋田県田沢湖付近刺巻湿原の調査
  • 東北地方にみられるエンレイソウ属植物の集団動態(1)秋田県田沢湖付近刺巻湿原の調査
  • トウホク チホウ ニ ミラレル エンレイソウゾク ショクブツ ノ シュウダン ドウタイ 1 アキタケン タザワコ フキン サシマキ シツゲン ノ チョウサ

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Description

About 1,000 plants of Trillium camschatcense (2n=2x=10) are growing well in the Sashimaki marshland (5 hectare area) near Lake Tazawa in Tohoku district. These plants are located in the most southern limit of their distributions (Trillium camschatcense). 13 plants of Trillium apetalon (2n=4x=20) also grow there. Only 3 plants of Trillium yezoense (2n=3x=15) have been found growing in this area. By means of chromosome analysis of cold-induced banding karyotype, it has been confirmed that their plants are hybrid between T. camschatcense and T. apetalon.

Journal

  • BUNRUI

    BUNRUI 4 (2), 117-123, 2004

    Japanese Society for Plant Systematics

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