Draparnaldia plumosa (Vauch.) C.Ag.

Japanese: ツルギミドロ（英語表記）Draparnaldia plumosa (Vauch.) C.Ag.

It is a grass or light green filamentous green alga that grows on stones, stakes, and other substrates in streams and ditches with relatively clean water throughout Japan, and its body has a clear distinction between the main axis and lateral branches. The main axis is roughly barrel-shaped, about 50 μm in diameter, and is 2-3 cm long, with similarly sized cells joined in a single row, branching oppositely or alternately. The branches are also clearly divided into the main axis and secondary lateral branches, and the overall shape of the branches is long and spindle-shaped. A similar species, D. glomerata (Vauch.) Ag., is known in Japan, but the overall shape of the branches is spherical or fan-shaped.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

日本各地の比較的きれいな水の流れる小川や溝の石や杭，その他の基物について生育する草色または明るい緑色の糸状の緑藻で，体は主軸と側枝の区別が明りょうである。主軸は径50μm内外の樽形に近い，似た大きさの細胞が単列に結合して長さ2～3cmになり，対生または互生に分枝する。枝も主軸と第2次の側枝との区別が明りょうで，枝の全形は長い紡錘形を呈する。日本には近似の種D.glomerata (Vauch.) Ag.が知られるが，枝の全形が球形または扇形である。

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

<<: Turgenev - Ivan Sergeevich Turgenev

>>: Sword Scroll - Tsurugi no Maki