AS APPLIED TO PHYSIOLOGY. 243 
On stripping off the bark gently, the adhesive part of the 
sucker is found to pass through the bark and attach itself to 
the wood, in which, depressions corresponding to the slits in 
the bark mentioned above are formed; these depressions 
present here and there a cellular appearance from some of the 
cells of the sucker remaining in adhesion. However irregu- 
larly indented the surface of the wood may be, the suckers do 
. not penetrate its substance! although they may subsequently 
become imbedded in the wood by the annual additions of the 
layers of this. 
[Are the juices the same in both? Whatever the degree of 
obliquity in the spire, the discs have their longest diameter 
parallel to the axis. Is the juice bitter ?] 
It is curious that the thickest part by far of a young 
branch of the Dodder, is that in which it is about to con- 
tract adhesions; the performance of this process appears 
to take some time; it is also, the only part which remains 
greenish. 
The adhesions of the Dodder with itself are similarly dis- 
posed ; the stock presents green oblong wounds; the suckers 
reach the woody system. 
On stripping off the parasite from a branch of one and a half 
year's growth, the slits are very visible, running in the direc- 
tion of the axis of the stock, these slits appear either distinct, 
or connected by a white membrane; the cuticle in most 
cases remains partly attached to each slit, around the mar- 
gins of which it appears to be inflexed. » 
Cuscuta gigantea. ; i 
Inflorescentia composita paniculata, apicem versus sim- 
pliciter spicata, ramis paucifloris, flore centrali vel termi- 
nali prius evoluto. Flos diaphanus, cellularis, sepalis tubum 
i-gquantibus. Corollz tubus cylindraceus, laminà 5-partita, 
laciniis patentibus, acutis.* Stamina faucem paulo infra in- 
serta, apicibus subexsertis; filamentis brevibus, connectivo 
valde carnoso, loculis rubro-sanguineis, polline aurantia- 
* The venation is as in the other species, viz. confined to the stamina ; for in this, 
above the insertion of the filament, the corolla is evascular ; so are the scales. 
d 
e. 

