196 REPORT OF THE CONFERENCE ON GENETICS. 
The application of the pollen of P. alata resulted in the development of 
a fruit of a size one would expect to be produced when the relative size 
of the fruits borne by the parent plants is considered. This fruit (fig. 41) 
Fic. 41.—Fruir or Passrrnora ‘Sr. Rute’ (P. aupa x P. BuonapartEa) 
RESULTING FROM POLLINATION BY P. AuaTa. Navurau SIZE. 
contained a very considerable number of seeds well advanced towards 
maturity, but none were perfect. 
P. suberosa. 
In contradistinction to the usual condition of things in the passion- 
flowers, P. swberosa affords an extremely interesting example of a self- 
fertile species. The flowers are minute and utterly lacking in the gay 
coloration of its better known relatives. It sets fruit with the utmost 
freedom, without the aid of insects. The fruit, in size and colour, 
resembles a black currant. Efforts to cross this species with others have 
failed up to the present. 
BeGcontA Hysrips. 
Begonia (tuberous variety) x B. coccinea. 
Reference was made at the previous Conference * to crosses between 
tuberous begonias and B. coccinea. One of these plants has been kept 
* Journal R.H.S, vol. xxiv. p. 176. 
