The President's Address. By Lord Avebury. 



279 



the two plans if we remember the different modes of growth. The 

 first series of species have, in ordinary parlance, no stem, and the 



Fig. 68. — Viola hirta. a, flower-bud ; b, full-sized capsule. 



capsules are therefore close to the ground. In V. canina, on the 

 other hand, there is a short stem, and the seeds being thus raised 



Fig. 69. — Viola canina. Capsule 

 with seed. 



Fig. 70. — Viola canina. Capsule 

 after ejecting the seeds. 



some little distance above the ground, can be thrown to greater 

 advantage. 



The ejection of the seeds follows a regular order. The outer 



