The P450-type carotene hydroxylase PuCHY1 from Porphyra suggests the evolution of carotenoid metabolism in red algae Caobangia A. R. Smith & X. C. Zhang (Polypodiaceae), a newly recorded fern genus from China Studies on Nuclear Division of Bangia Conchocelis The daily course of photosynthesis in situ in the economic macroalgae Bangia fusco-purpurea