266 ’ CORNACEAE. 
. DAVIDIA. 
(Family Cornaceae). 
Tree: deciduous. Twigs mod- 
erately stout, terete, somewhat 
zig-zag: pith moderate, rounded, 
pale, continuous with firmer 
plates at short intervals. Buds 
solitary, sessile or the lateral de- 
veloping into short spurs, rather 
large, with about  half-a-dozen 
blunt pale-margined scales. Leaf- 
scars alternate, moderate, half- 
elliptical or 3-lobed,' little raised: 
bundle-traces 3, large:  stipule- 
scars lacking. 
Davidia and Nyssa are some- 
times separated from the Corna- 
ceae in a family Nyssaceae. Bail- 
lon, who named the genus and its 
one known species, was a versa- 
tile writer whose Histoire Natu- 
relle des Plantes, and Diction- 
naire de Botanique are illustrated 
with the particular care for detail and artistic touch that 
characterize the best French work. 
Twigs and buds glabrous. D. involucrata. 
