[415 
III. Notes on the Development of the Ovula of Loranthus and Viscum find on 
the Mode of Parasitism of these two Genera. By Wiu1aM Mi aie Esq., 
Assistant Surgeon in the Madras Medical Service. Communicated by R. H. 
SorLy, Esq., F.R.S. & L.S. 
Read June 21st, 1836. 4 
T SHALL take as the type of the evolution of the ovula those of Loranthus 
Scurrula. 
At the earliest stage, that I have submitted to examination, I find that the 
ovarium is intimately adherent with the parietes of the calyx; its shape being 
merely indicated by lines of a denser tissue than the rest. The broadest part 
is situated towards the apex of the tube of the calyx. It is hence prolonged 
upwards, and terminates by being continuous with the tissue of the base of 
the style. It is prolonged likewise downwards into a long subulate process, 
which is continuous with the tissue of the pedicle. In the centre of the 
broader part a transverse opake line of tissue is visible. The tissue composing 
the calycine parietes is nearly homogeneous; nor is there any rudiment 
whatever of a viscous formation*. If we examine a flower shortly, or even 
immediately, before expansion, we find that in addition to the above, there is 
à brown, as it were, sphacelated line which runs along the centre of the style 
and the upper prolongation of the ovary to the centre of the transverse opake 
line; here it is thickened, and either ceases or spreads transversely on either 
side in the direction of the opake line. At this part there is evidently a small 
swelling, and the tissue has become more transparentf. These me changes 
are owing to the commencement of an excavation eed by the dislocation 
of the originally continuous tissue, and which communicates Rs with the 
Canal apparently existing in the style, along the ephacelated * E 
simultaneously with the appearance of this excavation the T of the 
* See Tab. IV. fig. 1. t Ibid. fig. 2. 
