The characteristics of the distribution of Potentilla (sensu stricto) species in Toyama Prefecture

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  • 富山県に自然分布するキジムシロ属植物（狭義）の分布の特徴
  • トヤマケン ニ シゼン ブンプ スル キジムシロゾク ショクブツ(キョウギ)ノ ブンプ ノ トクチョウ

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The characteristics of the distribution of eleven taxa in Potentilla (sensu stricto) in Toyama Prefecture were examined with environmental factors obtained from Mesh Climatic Normal Values (Japan Meteorological Agency, 2012). The main environmental factors are annual value of precipitation, annual mean temperature, annual mean amount of solar radiation, annual maximum snow deposit, WI, CI, Japan Sea Index (JSI) proposed by Suzuki and Suzuki (1971), and altitude. The distribution data were provided from the specimen database in TOYA, literature and field note of authors. The analysis of the distributions was carried out by one-way ANOVA. Analysis of the commonality of distribution using Sørensen's coefficient showed that P. centigrana and P. freyniana was the most similar. The next similar was P. centigrana and P. anemonifolia. By the result of cluster analysis of 11 species performed using climatic environments, there were three groups. P. chinensis group distributed in areas with lower annual rainfall and higher annual mean temperature, which including P. anemonifolia, P. toyamensis and P. freyniana. P. matsumurae group including P. nivea distributed in areas with lower annual mean temperature, higher annual rainfall and deepest snowfall. P. togasii group, including P. cryptotaeniae, P. fragarioides and P. ancistrifolia var. dickinsii, showed an intermediate between the above two groups.

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