详细解释:【医】 直生的(胚珠)
英语解释:
形容词 orthotropous:
(of a plant ovule) completely straight with the micropyle at the apex详细解释:
or.thot.ro.pous
adj.Botany (形容词)【植物学】 Growing straight, so that the micropyle is at the end opposite the stalk. Used of an ovule.直生的:直立生长以至珠孔在茎的另一端的。用于形容胚珠