74 Mr. Griffith on the Development of 



observed the same complete adhesion of the ovarium and calyx ; the same ori 

 ginal solidity ; the same subsequent sphacelation visible along the centre of the 

 style, and terminating at the site of the future excavation ; the same excavation ; 

 the same subsequent appearance of the ovulum ; the same formation, inclusion, 

 cotyledonary division and cvascularity of the embryo; the same apparent short- 

 ening and almost total disappearance of the funiculus ; the same nudification of 

 the apex of the radicle ; the same degree of coloration, and the same softening 

 down of the ovarium. This in one species is carried to such an extent that 

 only a portion of the base of the capsule remains in its original fibrous state ; so 

 that the greatest part of the albumen and immense radicle are enveloped by 



the viscous tissue*. 



Ovula of Viscum. 



In the earliest stage at which I have been able to examine the ovulum, I 

 find a similar adhesion of the ovarium and calyx. The outline of the former 

 is distinct, and the communication of its apex with the central canal leading 

 from the base of the style open and very freef. There is no development of 

 viscous tissue. Towards the apex of the ovarium there is a cavity communi- 

 cating with the canal leading from the stigma containing a cellular, mammil- 

 liform, central, but not papillose body, attached by a broad base, its apex 

 touching almost the termination of the canal. This is connected infei'iorly by 

 a thickish opake line running through the centre of the ovarium to its base. 

 This line is evascular, and consists merely of rather dense tissue. At this 

 period the nipple-shaped process, as I may call it, is brownish;}:. 



No important change occurs until after impregnation ; the only interme- 

 diate ones being the diminution of the diameter of the canal, and its greater 

 length after impregnation, so far as may be judged of by the sphacelation of 

 the stigma, the process is very apparent ; it is enlarged, and its apex more 

 attenuated. From the base of the central line, which runs from the base of 

 the process to the corresponding portion of the ovarium, two brown lines are 

 apparent, curved upwards and outwards. These lines are of a much deeper 

 brown than the rest of the process ; corresponding to one of the terminations 

 of the curved lines there is a small lateral excavation, which is partly occupied 

 by broken-up tissue^ partly by a sac which is attached to, and hangs from that 



* See Tab. V. fig. 5 & 6. fTab, X. fig. 1. J See Tab. X. fig. 1, 2 & 3. 



