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独叶草形态学的研究III.花、果实和种子的形态和解剖

胡正海, 田兰馨   

  1. (西北大学,西安)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1985-06-18 发布日期:1985-06-18
  • 通讯作者: 胡正海

Studies on Morphology of Kingdonia uniflora Balfour f. et W. W. Smith. III. The Morphology and Anatomy of Flowers, Fruits and Seeds

Hu Zheng-Hai, Tian Lan-Xin   

  1. (Department of Biology, North-Western University, Xian)
  • Received:1900-01-01 Revised:1900-01-01 Online:1985-06-18 Published:1985-06-18
  • Contact: Hu Zheng-Hai

摘要:

本文报道独叶草 Kingdoinia uniflora 的花、果实和种子的形态结构规律。  花的各部分
    多而无定数,呈螺旋状排列。花被片的脉序呈开放的二叉分枝,可分三类。雄蕊分能育和不
    育两类,维管束单一,后者顶端的凹沟内具蜜腺,前者的花粉囊呈侧向-外向着生。心皮分化
    为三部分,子房具柄,含1枚横生胚珠。开花时,心皮不完全闭合,属半开放型,近似黄连属
(Coptis)植物。聚合瘦果,种子1枚,胚处于原胚期,胚乳丰富。文中还讨论了有关形态演化问题。

关键词: 独叶草, 花, 果实, 种子, 形态, 解剖

Abstract:

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.

Key words: Kingdonia uniflora, Flower, Fruit, Seed, Morphology, Anatomy