82 Mr. Grirriru on the Development of 
marked down several points for particular study at Mergui during the rainy 
season ; but it is now very probable that a considerable time will elapse before 
I can recur to this very interesting subject. A particular series of observa- 
tions is required as to the precise mode in which the radicle, or seminal 
sucker as it may be called, of the young parasite, as well as those of the 
lateral shoots, reach the surface of the wood. Observations on those species 
* Viscum which have a plurality of embryos, and on the exact mode of 
adhesion of this genus to the stock, will likewise afford many interesting par- 
ticulars. 
EXPLANATION OF THE PLATES. 
Tas. IV. 
Fig.1. Longitudinal section of an ovarium of Loranthus Scurrula. 
a. Parietes of the calyx. 5. Bases of two petals remaining. c. 
Ovarium. d. Its upper portion, where it is continuous with the 
tissue of the style. e. Central, transverse, opake, linear spot, the site 
of the future excavation. 
Fig.2. a. Parietes of the calyx. 6. Commencement of the viscous tissue. 
c. Ovarium. d. Its upper portion, which is now traversed by a 
brown line passing through the centre of the style; the adjacent 
tissue being sphacelated. e. Extension of the sphacelated line trans- 
versely. The excavation has just commenced. 
In one instance the tissue of the sucker was prolonged downwards between the wood and bark of the 
stock. The centre of this prolongation was occupied by a ligneous fascicle, 
To show the fact of a non-continuity of tissue, the section must always be carried through the 
centre of each sucker, and the branch to which it is applied. As these suckers have not a linear but 
Tas. VIII. fig. 5 & 6. represents a young plant of a species of Loranthus attached by a broad base 
to an elevation of corresponding breadth of the branch, which, however, it overlaps; see fig. 7. The 
elevation visible in the branch is produced by the passage of the roots of the parasite under the bark. 
They expand so as to form what the French term a páté d'oie, Here, again, the roots do not penetrate 
beyond the original attachment, 
