Some Yi Hybrids 
21 
Color of Foliage: Almost green but slightly tinged with brown. 
This is especially noticeable on the tendrils, petioles and leaf veins and 
in the seedling stage on the liypocotyl and on the lower surfaces of the 
Fig. 11. A leafy shoot with a flower-cluster from the 1914 staminate 
Bourquiniana-Rotundifolia hybrid (Herbemont X Light Male No. 2). This is 
the oldest known Bourquiniana-Rotundifolia hybrid vine. Notice the five- 
lobed leaves which are characteristic of these hybrids; the short, simple and 
bifid tendrils, the small flower-cluster (similar to an average staminate 
Iiotundifolia flower-cluster) and the slender and nearly straight cane. 
Reduced. 
