Tlie President's Address. By Lord Avebury. 



165 



In S. palestina (fig. 39) and S. atrcpurpurea the arrangement is 

 carried still further, and between each two ribs is a perforation, 

 through one of which the radicle finds its way to the ground. 



It will be observed that these recent seeds to which I have been 

 calling your attention differ in various ways from those of former 



Fig. 38. — Scabiosa gramuntia 



X 4. Germination. 



r, radicle ; c, cotyledon. 



Fig. 39. — Scabiosa palestina. x 3. 

 Involucel, containing fruit. 



Fig. 40. — Scabiosa palestina. X 2. 

 Germination. 



(Figs. 38-41 from my work on " Seedlings.") 



geological periods, as, for instance, those described in the Address 

 given by my predecessor in the chair. In former periods, for 

 instance, we do not find the same abundance, at any rate, of very 

 small seeds— such as those of Orchids and many parasitic plants ; 

 we do not find, so far as I know, seeds with hooks ; nor fleshy plants, 



