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出典:Wikipedia
出典:『Wikipedia』 (2011/02/10 18:18 UTC 版)
Halysis is a genus of alga thought to fall in the coralline stem group. It has only been recovered in thin sections, and thus is only known in two dimensions; however, an interpretation as a sheet of cells rather than a sheet of tubes or a single row of cells is the most plausible.
halysis