Table 4.
Characteristics of the leaf epidermis of Oxytropis under scanning electron microscopy.
| Species | Adaxial epidermis | Abaxial epidermis | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Shape of trichromes | Ornamentation of trichromes | Inner margin of outer stomatal ledge | Ornamentation of outer stomatal ledge | Waxy layer of epidermal cells | Shape of trichromes | Ornamentation of trichromes | Inner margin of outer stomatal ledge | Ornamentation of outer stomatal ledge | Waxy layer of epidermal cells | |
| O.ciliata | strip-like | striation | undulate | smooth | smooth | absent | absent | smooth | smooth | smooth |
| O.muricata | cylindrical | striation with granular | smooth | smooth | smooth | cylindrical | striation with granular | undulate | granular | granular |
| O.falcata | cylindrical | striation with granular | undulate | granular | scale-like | cylindrical | striation with granular | undulate | granular | granular |
| O.ochrantha | cylindrical | striation | undulate | smooth | granular | cylindrical | striation | smooth | smooth | smooth |
| O.bicolor | cylindrical | striation with granular | smooth | smooth | smooth | cylindrical | striation with granular | smooth | smooth | smooth |
| O.racemosa | cylindrical | striation with granular | undulate | granular | scale-like | cylindrical | striation with granular | undulate | granular | granular |
| O.myriophylla | cylindrical | striation | undulate | granular | smooth | cylindrical | striation | undulate | granular | scale-like |
| O.aciphylla | cylindrical | striation with granular | undulate | scale-like | scale-like | cylindrical | striation with granular | undulate | granular | granular |
| O.imbricata | cylindrical | striation with granular | undulate | granular | granular | cylindrical | striation with granular | undulate | smooth | smooth |
| O.coerulea | cylindrical | striation with granular | undulate | banded sediment | granular | absent | absent | undulate | banded sediment | granular |
| O.xinglongshanica | cylindrical | striation with granular | undulate | scale-like | scale-like | cylindrical | striation with granular | undulate | scale-like | scale-like |
| O.glabra | cylindrical | striation with granular | smooth | smooth | smooth | cylindrical | striation with granular | undulate | granular | granular |
| O.kansuensis | cylindrical | striation with granular | undulate | granular | granular | cylindrical | striation with granular | undulate | granular | granular |
| O.melanocalyx | cylindrical | striation with granular | undulate | scale-like | scale-like | cylindrical | striation with granular | undulate | smooth | smooth |
| O.taochensis | cylindrical | striation with granular | undulate | scale-like | scale-like | cylindrical | striation with granular | undulate | granular | granular |
| O.ochrocephala (XLS) | cylindrical | striation with granular | undulate | scale-like | scale-like | cylindrical | striation with granular | undulate | smooth | smooth |
| O.ochrocephala (HZ) | cylindrical | striation with granular | undulate | scale-like | scale-like | cylindrical | striation with granular | undulate | smooth | smooth |
| O.latibracteata | cylindrical | striation with granular | smooth | smooth | smooth | cylindrical | striation with granular | undulate | smooth | smooth |
| O.squammulosa | absent | absent | undulate | granular | granular | absent | absent | undulate | granular | granular |
Note: XLS (Xinglongshan population); HZ (Hezuo population).