K —BOTANY 197 
PLATE JI—REFERENCES. 
Fic. 9. Sagittal section of U. cerulea. 
Fic. 10. Sagittal section of U. globulariefolia. 
Fic. 11. Sagittal optical section of an entire trap of U. cerulea showing 
the posture of the door and the profile of the entire trap when in the 
set condition (1), and after actuation (2). Inset: longitudinal view 
(diagrammatic) to show the form of the trap as thus seen before (1) 
and after actuation (2). 
Fic. 12. The posture of the door with respect to the threshold in the 
U. vulgaris type (above), and in the U. cornuta type (below). p.d., 
the plane of the door axis; p.t., the plane of the threshold axis. 
(Compare Figs. 5 and 23 for a better idea of the proportions of the 
threshold, narrow in the vulgaris type, broad in the cornuta type.) 
Fics. 13 AND 14. An unnamed species from Ceylon, closely allied to 
U. lateriflora. Fig. 13, the entire trap; Fig. 14, the same in sagittal 
section. 
