232 DILLENLACEAE. 
ACTINIDIA. 
(Family Dilleniaceae). 
Woody twiners: deciduous. 
Stems moderate, terete, brown: 
pith moderate, white and con- 
tinuous in some _ species, pale 
brownish and chambered in others, 
terete. Buds small, concealed in 
the thickened cortex above the 
leaf-scar, the end-bud lacking. 
Leaf-scars alternate, round, rather 
large, much raised: bundle-trace 
1, round or_ crescent-shaped: 
stipule-scars lacking. 
The curious anomaly of buds 
buried in the cortex, which Actini- 
dia shows, does not rest upon ad- 
ventitious development from the 
vascular axis of the stem, as ap- 
pears to be the case. In a paper 
published in volume 3 of the 
Botaniseches Centralblatt, Hilde- 
brand shows that in their earlier 
stages these buds are at the surface, as in ordinary plants, 
but as the development of the node progresses the large cor- 
tical cushion about them thickens so as to surround and 
finally overtop them. 
Winter-character references:—A. arguta. Shirasawa, 259, 
pl. 7. A. polygama. Schneider, f. 93; Shirasawa, 259, pl. 7. 
1. Pith white, continuous. (Cat vine). A. polygama. 
Pith brownish, chambered. 2. ~ 
2. Twigs glabrous. (1). A. arguta. 
Twigs hairy. A. chinensis. 
