Comparative Study on the Leaf Venation of Menispermaceae in Fujian

Conducts the systematic observation on leaf venational patterns of 7 general and 13 species of Menispermaceae in Fujian Based on their different characteristics, the menispermaceae leaf venations are divided into three type: actinodromous, palinactinodromous and acrodromous The division of venational patterns don't relate to genera These species venational characteristics distinct from each other in a number of primary vein, ramified, the secondary veins' angle of divergence and behaviour And these distinctive characteristics are steady, which indicate that the leaf venational of menispermaceae have significance for the delimitation of species These paper also provide additional evidence for evolution of menispermaceae