I08 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



Fig. 64. Galium circaezans 

 etiolated stem. X 20. 



A, epidermis of normal stem. B, epidermis of 



Fig 6s. Partial cross section of normal stem of Galium circaezans. A epi- 

 dermis. ■ B, cortex containing chlorophjl. C, sieve tissue. D, xylem. E, pith. 



