Two New Species of <i>Ranunculus</i> (<i>Ranunculaceae</i>) from Japan

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Other Title
  • 日本産キンポウゲ属（キンポウゲ科）の2新種

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Description

<p>Two new species of Ranunculus (Ranunculaceae) are described from Japan. Ranunculus hasunumae Kadota is described from Kitakata-shi, Fukushima Pref., Honshu, central Japan. It is distinguished from R. repens L. in having 1) thick and lustrous leaves, 2) less divided leaf lobes, 3) deep purplish stem and petioles at base, 4) strongly hooked achene beaks, and 5) larger and heart-shaped scaly appendages of nectaries, and 6) longer, thicker, glabrous pedicels. Ranunculus hasunumae was found to occur along the margins of a planted Cryptomeria japonica grove. Ranunculus hondanus Kadota is reported from wooded marsh, Setana-cho, Kudō-gun, Hiyama Subpref., southwestern Hokkaido, northern Japan and is different from R. hakkodensis Nakai in having 1) decumbent and not prostrate stem, 2) larger flowers 12–15 mm in diam., 3) larger petals 7–8 mm long, 4) scaly appendages fused with nectaries, 5) larger fruiting heads 8–10 mm in diam. and 6) short-stalked achenes with apically hooked beaks 1.5 mm long.</p>

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Details 詳細情報について

  • CRID
    1390293821444949888
  • DOI
    10.51033/jjapbot.94_6_10971
  • ISSN
    24366730
    00222062
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Allowed

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