常見(jiàn)例句Germination epigeal;cotyledons plicate. 發(fā)芽時(shí)子葉出土子葉折扇狀。Cotyledons usually 2, rarely 3-6.Germination epigeal. 子葉通常2,很少3-6。Fruit a small, winged nutlet, indehiscent; germination epigeal; female spike 10- to numerous flowered, pendulous. 果一小,具翅,不裂;發(fā)芽時(shí)子葉出土雌性穗狀花序10-對(duì)許多花,下垂。(6Fruit a small, flattened, narrowly 2-winged nutlet, 2-chambered at base.Germination epigeal. 果小,扁平,有2狹翅,基部有2室。Rapid elongation of the hypocotyls after germination pushes the cotyledons above ground in plants showing epigeal germination. 種子萌發(fā)後下胚軸迅速增長(zhǎng),將子葉頂出地麪形成地上芽。They form the first photosynthetic organ in seeds showing epigeal germination, e.g. sunflower (Helianthus) but in others they remain underground. 有些種子的子葉在種子萌發(fā)後露出土麪,進(jìn)行短期的光郃作用,如曏日葵(Helianthus),但在另一些植物中子葉仍然在地下。 返回 epigeal