Studies on Morphology of Kingdonia uniflora Balfour f. et W. W. Smith. III. The Morphology and Anatomy of Flowers, Fruits and Seeds
独叶草形态学的研究III.花、果实和种子的形态和解剖

In the present paper, the morphology and structure of the flower, fruit and seed of Kingdonia uniflora are reported. Each part of the flower is usually indefi- nite and is spirally arranged. The venation of the tepals is open-dichotomous and cla- ssified into three types. There are two types of the stamens, which have a solitary bun- dle; the sterile stamens bear nectaries in the ventral furrows of the apex, and the pollen sacs of the fertile ones are lateral-extrose. The carpel is differentiated into three parts, and is not completely closed in flower, which represents a half-opened type and is si- millar to that of Coptis. The fruit is an achene. The embryo is at the stage of proem- bryo when the fruit is mature. The endosperm is copious. In this paper, some problems concerning morphological evolution are also discussed.