图3 前胡属果实横切面,示分果形状,毛状体,脊,翅,维管束,伴生油管,沟里及结合面油管,胚乳,结合面宽及心皮柄特征 Fig.3 Transverse sections of fruits of Peucedanum showing variation in mericarp shape, trichome, ribs, marginal wing,vascular bundle, rib duct, vittae in furrow and commisure, endosperm, commissural width and features of the carpophore |