葉片在不同光照下改變顏色 (Leaves change colors under different lighting)
生長於極陰暗環境的熱帶卷柏,其葉片透過除去光保護薄層來改善光照條件,葉表從虹光藍色轉變成綠色
(Leaves of extreme shade Selaginella tropical ferns change in improving light conditions from being iridescent blue to green by removal of photoprotective coating.)