J. M. Macfarlane. — Sarraceniaceae. 



13 



Fig. 5. Histology of Sarraceniaceae. A Transverse sect. of pitchered leaf of Sarracenia flava slightly above level 

 of pitcher bottom, fibro-vascular system alone shown, p pitcher cavity. — B Leaf of S. purpurea cut open. 

 a "attractive" lid surface, b smooth "conducting" surface, c glistening "glandulär'' surface, d "detentive" surface. 

 — Magnified views of last, a "attractive 1 ' 1 surface with glands and hairs, ö hair magn., c "conducting" surface 

 witb glands, d epidermal cell from c magn., e "glandulär'' surface, / a few cells from c. — D Epidermis frora 

 pitcher cavity of Heliamphora, a lid surface with "attractive" glands, b two glands magn., c "conducting" surface, 

 d smooth zone, e "detentive" surface. — E Glands of Darlingtonta, a section of "alluring" gland from pitcher ex- 

 terior, b "attractive" gland from inner pitcher-rim, c sectional view of b. — F Nectariferous papillae from outer 



ovarian wall of S. purpurea. (Original.) 



