…It grows in runoff water in the Shikoku and Kyushu regions. It was first discovered in a stream flowing out of a small pond called Oki-izumi in Matsuyama City, and the place where it grows is designated as a national natural monument. It can be distinguished from the similar freshwater alga Thorea okadai Yamada, which is also a national natural monument (Kikuchi River, Kumamoto Prefecture, Kawauchi River, Kagoshima Prefecture), by the fact that its assimilation threads are almost completely unbranched. … *Some of the terminology that refers to "Okichi Izumi" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…四国および九州地方の流出水中に生育する。和名は松山市の〈おきち泉〉という小さな池から流出する小川で最初に発見されたことにより,その生育場所は国の天然記念物に指定されている。近似の淡水藻で,同様に国の天然記念物(熊本県菊池川,鹿児島県川内川)となっているチスジノリThorea okadai Yamadaは同化糸がほとんど分枝しないことで区別できる。… ※「おきち泉」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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