— Plate I. — 



Fig. I. — Heliamphora nutans (grown at the Edinburgh Botanical Gar- 

 den). 



Fig. 2. — H. Macdonaldae (Photograph by Dr. G. H. H. Tate taken on 

 Mt. Duida, Venezuela). 



Fig. 3. — Sarracenia purpurea (Photograph by Charles Macnamara, 

 Ontario). 



Fig. 4. — S. purpurea: a leaf cut lengthwise. 



Fig. 5. — S. purpurea: view facing the opening. 



Fig. 6. — 5. Drummondii. 



Fig. 7. — 5. flava. 



Fig. 8. — S. psittacina. 



Fig. 9. — S. minor (Photograph by Professor J. C. Th. Uphof). 



