226 DEVELOPMENT OF LEAVES, 
6. The same in situ; a. stipule ; J. penult. leaf; c. scare 
ud. 
7. Ultimate leaf with commencing stipule, and last leaf 
punctum, also a scale. 
These compound leaves (i. e. Nandina) take upon them 
their development sooner than bipinnate, and ordinary 
leaves. 
There is no difference between a young Bauhinia leaf and 
a young Hymenea leaf. 
There is no difference between young Nandina leaf, and 
young Aralialeaves; but the former are more perfect. 
There is no connection whatever between the division of 
leaves and their venation. 
I have examined also Foetidia, the convolute buds of which 
are actually convolute leaves, not bud-scales, hence it differs 
from Rhizophórez ; the convolution is visible in the penulti- 
mate or ultimate leaf; in the axillz of the outermost a stalked 
body occurs with two conduple bractee, and a central four 
lobed-disc, evidently the very very young flower. 
In Nandina domestica the circumstances are a good deal 
the same as in Aralia, but each pinnule instead of being simple, 
is pinnate. 
The stipule are extensions of the petiole forming a cone 
over the young leaf, the primary pinnz of which in the pe- 
nultimate leaf, are sessile ; the organ exists in the ultimate leaf, 
i. e. that next the punctum of the disc 
Opposite this margin of ipn MAE union of the sive, 
exists a large scale, i. e. in the. dorsum of the axilla. This 
although much larger than the others, I take to be the first 
formed scale of the bud, which is common in the axille, and 
which were leaf buds. x 
This instance shews clearly that the division of the leaf is 
dependent upon division of the parenchyma, and quite inde- 
pendent of the veins, which do not exist. 
The leaves in this, have a nodose irregular appear- 
ance. 
Is the dorsal scale analogous to the scale or stipule ! ? of 
Naiades, etc. 

