AS APPLIED TO PHYSIOLOGY. 245 
Adhesion also to the corolla, and probably to every 
thing with which it may chance to come in contact. The 
branches and stems are excessively long and pendulous ; 
marks of adhesion may be found on stocks of many years' 
growth. 
Cuscuta gigantea. Pl. 61. 
Fig. 1. Young stem transverse section. 
» 2. Ditto longitudinal section, passes obliquely through 
the sucker. 
;> 3. Transverse section of mature stem, through a 
sucker. 
» 4. Transverse ditto carried through a sucker of another 
stem of Cuseuta. 
» 5. Longitudinal section of stock, Salix sp. and sucker, 
and stem of Cuscuta. (This is a plan for the sucker 
being oblique, cannot be represented longitudinally 
with a longitudinal section of stock.) 
» 6. Longitudinal section of No. 4. 
» 7. Longitudinal section of stock and sucker. 
s Eleagnus. Sinjit. Pl. 61. fig. 9. 
a. External system, Cuscuta. 
b. Woody external system, not a central section, but 
parts of the pith ought to be represented. 
This space was filled with gelatinous fluid. 
. Bark of Eleagnus. 
Receptacles of gum. 
Wood. 
Pith. 
Remarks on the sketch.—The external system or bark of 
the Dodder presents on a longitudinal section, a cellulo- 
gelatinous appearance. 
The cells seen in the sketch, one muriform and forming 
right angles with the woody system, are curious, perhaps they 
were part of a sucker forming, for that part of a sucker near 
it has the usual tissue. The sucker would appear to present 
the form of a narrow disc, not expanding. 
Of the limits of the bark and wood of Elzagnus, I am not 
certain, no separation taking place besides the rays of the 
sho as 
