The P450-type carotene hydroxylase PuCHY1 from Porphyra suggests the evolution of carotenoid metabolism in red algae Chemical constituents of Hypnea charoides A taxonomic study of freshwater red algae from Shanxi Province,North China Balbiania Sirodot-a new record of freshwater red algae from China Carbon fixed by phytoplankton and cultured algae in China coastal seas A New Species of Fresh-Water Red Algae—Audouinella heterospora from China Seasonal dynamics of Batrachospermum gelatinosum growth and distribution in Niangziguan spring,China Chemical constituents from red alga Corallina pilulifera