實驗花的構造ppt課件-展示頁
2025-05-12 22:07本頁面
【正文】 eed. The larger plants are Lemna gibba, about 2 to 3 millimeters long。 two stamens and a style protrude from a pocket on the upper surface of the plant. Monocots. (a) A member of the palm family, ily, the coconut palm (Cocos nuci fera), grozoing in Tehuantepec, Oaxaca, Mexicon. The fruit of coconut is a drupe, not a nut (see Chapter 19). (b) Flowers and fruits of the banana plant (Musa X paradisiaca). The banana flower has an in ferior ovary, and the tip of the fruit bears a large scar left by the fallen flower parts . (c) Rice (Oryza sativa) is a member of the grass family. function of the leaves. (c) Roundlobed hepatica (Hepatica americana), which flowers in deciduous woodlands in the early spring. The flowers have no petals but have six to ten sepals and numerous spirally arranged stamens and carpels. (b) Saguaro cactus (Carnegiea gigantea). The cacti, of which there are about 2022 species, are almost exclusively a New World family. The thick, fleshy stems, which store water, contain chloroplasts and have taken over the photosynthetic 穗狀花序 傘形花序 傘房花序 總狀花序 圓錐花序 柔荑花序 復傘形花序 頭狀花序 肉穗花序 （一）花的組成與基本結(jié)構
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