作 者 ：Dai Lun-Kai, Liang Song-Yun
期 刊 ：植物分类学报 1991年 4期
Keywords:Ophiopogoneae, Peliosantheae, Ophiopogon Liriope, Peliosanthes, leaf epidermis,
Abstract:
This paper reports epidermal features of leaves in Ophiopogonoideae. Thirty-nine
species and one variety (29 species, 1 variety in Ophiopogon, 6 species in Liriope, 4 species
in Peliosanthes)were examined under scanning electron microscope. In addition, transections
of stomatal apparatuses of six species (Ophiopogon: 3 species; Liriope: 2 species;
Peliosanthes: 1 species) were made and examined under light microscope.
The stomatal apparatus in Liriope, Ophiopogon and Peliosanthes is of the anomocytic
type. These types of epidermal features of leaves in these genera are recognized: Cuticular
processes type, No cuticular processes type and No stomatal band type. The cuticular
processes type can be further divided into three patterns: Fibrillose, Massive and
Wrinkled-massive. The taxonomic value of the epidermal features of leaves in
Ophiopogonoideae is rather evident. (1)These epidermal features can be used to distinguish
among those species of Ophiopogon, Liriope and Peliosanthes, even in their vegetative state;
(2) The different patterns of cuticular processes are helpful to reasonable classification of
some species in Ophiopogon, (3)They are of great value for recognizing some sections, (4)
These epidermal features of leaves also provide evidence for further discussion on relation-
ships among Ophiopogon, Liriope, and Peliosanthes.
The evolutionary trend of the epidermal features of leaves in Ophiopogonoideae
is No stomatal band type→No cuticular process type(stomatal band)→Cuticular process
type (stomatal band). According to the epidermal features of leaves, flowers and
fruits, Ophiopogon, Liriope and Peliosanthes are closely related, forming a subfamily
Ophiopogonoideae. Ophiopogon is more close to Liriope than to Peliosanthes, and they
should be grouped into the same tribe-Ophiopogoneae. Liriope seems to be more prim-
itive than Ophiopogon. Peliosanthes, which constitutes another tribe of its own-
Peliosantheae, is more advanced than Ophiopogon and Liriope, and it might have been
derived from its ancestor early.