A perennial plant of the Podocarpus family that resembles moss and grows on rocks in mountain streams in southern Kyushu. It rarely grows in the upper reaches of the Okawa, Kamikawa, and Takasugawa rivers in Kagoshima Prefecture, and the Oyodo River in Miyazaki Prefecture. The scientific name of the genus, Hydrobryum , means "aquatic moss," and it has a shape similar to that of a moss plant. It is attached to plants by flat, green roots and performs photosynthesis, just like Podocarpus, but whereas Podocarpus has leaf-like roots that branch out like pinnates, Podocarpus has circular roots. The true leaves are thread-like or scale-like, and about 1 cm long. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
南九州の渓流の岩に付着する,コケによく似たカワゴケソウ科の多年草。鹿児島県の雄川,神川,高須川,宮崎県の大淀川などの上流にまれに生育する。属の学名Hydrobryumは,〈水中のコケ〉の意味で,コケ植物に似た形をしている。扁平で緑色の根によって固着し,光合成を行う点はカワゴケソウと同じだが,カワゴケソウの葉状の根が羽状に分枝するのに対し,カワゴロモでは円形である。本当の葉は糸状または鱗片状で長さ1cm程度。
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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