A Taxonomic Study of Chrysosplenium fauriae Group (Saxifragaceae), with Description of a New Species

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  • ネコノメソウ属ホクリクネコノメ群(ユキノシタ科)の一新種と群内の分類学的再検討
  • ネコノメソウ属ホクリクネコノメ群(ユキノシタ科)の一新種と群内の分類学的再検討〔英文〕
  • ネコノメソウゾク ホクリクネコノメグン ユキノシタカ ノ イチシンシュ ト グ

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Chrysosplenium fauriae (in Series Macrostemon) with two varieties, var. fauriae and var. kiotense, is revised on the basis of morphology of flowers, capsules and seeds, cytology and geographical distribution. Some distinct morphological gaps are recognized between these varieties, and the existence of genetic isolation between them is also suggested from their sympatric occurrence. Variety kiotense is re-evaluated as a distinct species. A new species, C. nagasei, distributed mainly in central Gifu Prefecture and along the Ibuki-Suzuka Mountain Range is recognized in the C. fauriae group from the morphological and distributional evidence. Two varieties, var. luteoflorum and var. porphyranthes, are described on differences in flower colour and size. A brownish flowered form of C. fauriae found around Mt. Hyonosen (Hyogo and Tottori prefectures) is named f. ferruginiflorum.

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