Abstract:
A study on leaf epidermal and anatomical features under SEM and LM shows that it is confirmed to assign
Pseudotaxus chienii (Cheng) which was originally described as
Taxus chienii (Cheng) to a separate genus; it is rational to establish Sect.
Pectinatae in the
Cephalotaxus. The Cephalotaxaceae and the
Amentotaxus of Taxaceae show many resemblance on leaf anatomical characters,but the Cephalotaxaceae appears to be closely related to Podocarpaceae on the basis of leaf epidermal features. These results suggest that the phylogenetic relationships are both intricate and related among the Taxaceae,Cephalotaxaceae and Podocarpaceae.