PLATE LXXXVIII. COCKSPUR THORN. 



1. A flowering branch, x i. 



2. Longitudinal section of a flower, natural size. 



3. A fruiting branch, x J. 



4. Section of a fruit, x J. 



5. A winter twig, natural size. 



6. Section ot a branch showing thorns with buds at their bases, enlarged. 



