北海道におけるコバノヒルムシロの再発見と分布記録の整理

書誌事項

タイトル別名
  • Rediscovery and examination of previous reports of Potamogeton cristatus (Potamogetonaceae) from Hokkaido
  • ホッカイドウ ニ オケル コバノヒルムシロ ノ サイハッケン ト ブンプ キロク ノ セイリ

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抄録

Although all recent Japanese floras had recognized Potamogton cristatus Regel et Maack as a species distributed in Honshu and Kyushu but not in Hokkaido, we found this species in Kamihoromui, Iwamizawa city of central Hokkaido in 2000. A careful reexamination of early floristic reports and herbarium specimens clarified that P. cristatus was once collected at Sapporo city of central Hokkaido by Dr. K. Miyabe in 1901 and its presence in Hokkaido was reported by Miyabe and Kudo (1931). Thus, the present report is a rediscovery of P. cristatus in Hokkaido after about a century. Other previous floristic reports which admitted the presence of this species in Hokkaido, were not based on any reliable herbarium specimens.

収録刊行物

  • 分類

    分類 4 (1), 41-48, 2004

    日本植物分類学会

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