45 8 Macfarlane. — Pitcher ed Plants . 
Fig. 36. Vertical section of ‘ peptic ’ gland from Nepenthes bicalcarata : a, down 
growing epidermal flap ; b , surface columnar cell-layer of the gland ; c , sub 
glandular membrane ; d , terminal elements of the vascular bundle, x 350. 
Fig. 37. Receptacular processes from flower of Cephalotus follicularis . x 75. 
Figs. 38-43. Leaflets of Gleditschia triacanthos. 
Fig. 44. Teratological pitcher of Sarracenia purpurea . 
