常見例句Pits can be clearly seen in the walls of epidermal cells.Leaves are amphistomatic or hypostomatic. 水杉屬的多數表皮細胞垂周壁明顯彎曲,落羽杉屬和杉木屬有時微呈波狀,其他屬的表皮細胞垂周壁直。hypostomatic leaf 氣孔下陞葉 返回 hypostomatic