Abstract:
In order to provide new data for clarification of the generic relationship in Hypoxidacae,
morphology, ultrastructure, and anatomy of leaf from five species in Hypoxidaceae were
investigated using microscope, scanning electronic microscope (SEM), and paraffin section. It turned out that there were five points of views as below ： (1) Three types of leaf shapes were
characterized, including small-even, middle-wave, and large-plicate. (2) Trichomes were
single-celled and uniseriate, and grouped into pilose, strigose, and stellate. (3) Shapes of leaf
epidermal cells were hexagon and pentagon, while stomata was paracytic and elliptic with a
correlation between size and density. (4) Sculptures of wax in epidermis was classified into
smooth, granular, scales, and crust. (5) Leaf anatomy revealed two types of vascular bundles and
relevence between thickness of epidermis and size of epidermal cells. Based on comparative
morphology and anatomy of leaf, it is suggested that complex of some characters would be helpful
for understanding of generic relationships in Hypoxis L., Curculigo Gaertn. and Molineria Colla.,
while other characteristics for species identifications.
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