PLATE LXXIX. TULIP TREE. 



1. A flowering branch with inatiiif anil developing leaves, s i. 



2. Branch with a eone-Iik*' fruit. \ h- 



3. A single carpel, natural size. 



•1 Portion of a carpel showing seeds, natural size, 



5. A seed, enlarged. 



<). Side view of a seed, enlarged. 



7. A winter twig, x J 



S. A terminal bud just opening, x J. 



9. A twig showing developing leaves, x *. 



