Jeffrey.—On the Affinities of the Genus Yezonia. 773 
DESCRIPTION OF PLATE LXV. 
Illustrating Prof. Jeffrey’s paper on the genus Yezonia. 
Fig. 1. Transverse section of young stem of Brachyphyllurn macrocarpum. x 10. 
Fig. 2. Longitudinal section of a young branch of B. macrocarpum. x io. 
Fig. 3. Tangential section of the leaf of B. macrocarpum. x 40. 
Fig. 4. Longitudinal radial section of older stem of B. macrocarpum , showing zone of transfusion 
tissue, x 40. 
Fig. 5. Transverse section through a part of the leaf of B. macrocarpum. x 40. 
Fig. 6. Section through the stoma of B. macrocarpum. x 180. 
Fig. 7. Tangential section of surface of leaf of B. macrocarpum, showing stripes of hypodermal 
tissue and rows of stomata, x 80. 
Fig. 8. Stomata of the same much more highly magnified. x 180. 
Fig. 9. Part of woody cylinder of B. macrocarpum , showing the irregularly thickened zones of 
tracheids. x 80. 
Fig. 10. Another specimen, less highly magnified, showing resin canals and periderm above the 
zone of wood, x 40. 
Fig. 11. The same in a different region more highly magnified, x 80. 
Fig. 12. Section through the wood of the wall of the fibrovascular cylinder of an older specimen 
of Brachyphyllurn. x 40. 
3 G 
