J Integr Plant Biol. ›› 1959, Vol. 8 ›› Issue (4): -.

• Research Articles •    

On a New View of Carpel Morphology in Brassica

C. Yen   

Abstract: In the present paper, a new view of carpel morphology in cruciferae has been proposed by the author, which is based upon the characters of vascular supply of the normal and phyllody pistils and siliques of Brassica napella Choix. The siliques of cruciferae are composed of a set of six carpels which are originally on the same node. These carpels are arranged into two whorls. The carpels of the outer whorl are four sterile carpels. One pair of them form the centrol portions of two sterile valves. The other pair of sterile carpels form the outer portions of the rib-like fertile valves, and their marginal areas form the side portions of sterile valves. A pair of fertile carpels of inner whorl form the inner portions of the rib-like fertile valves, and they are to unite with such sterile carpels of the rib-like fertile valves along their ventral line longitudinally. ,The ovules are born on marginal areas of these fertile carpels, and are supplied with nourishment by lateral viens. The apex of four sterile carpels of outer whorl are fused and transformed into a style and stigima. The septum is formed by a bridge which connects the epidermis and parenchyma situated along the dorsal and longitudinal line of two fertile carpels.

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