— Plate i6.— 



Figs. i-i8. — Drosera. 



Figs, i, 2, 3. — D. pygmaea. i, ventral, 2, lateral views of a marginal 

 tentacle gland; 3, sectional view of leaf blade gland. 



Figs. 4-6. — Stages in the development of the gland in D. rotundifolia 

 (after Homes). 



Fig. 7, earlier, and Fig. 8, later stage in the development of a leaf bud at 

 the base of a tentacle in D. rotundifolia (after Behre). 



Figs. 9, 10. — Still later stages of same in D. peltata. In fig. 10 the ten- 

 tacle is completely displaced (after Vickery). The broken line in- 

 dicates one face of the thick section. 



Fig. II. — End of a dropper while extending. 



Fig. 12. — Same, on beginning to round up to form a bulb in D. peltata 

 (after Vickery). 



Fig. 13. — Young and older seedling. A dropper is developing on the 

 older seedling in D. peltata (after Vickery). 



Fig. 14. — Ventral, lateral and basal views of a gemma of D. pygmaea. 



Fig. 15. — Same after Goebel. The right hand one is germinating. 



Fig. 16. — D. pygmaea (or a related sp.), showing mature gemmae (after 

 Goebel). 



Pic 17. — Diagram of mid-sectional view of the true D. pygmaea (col- 

 lected by Dr. Pat Brough near Sydney, N. S. W.). 



Fig. 18. — Young leaf from same, dorsal view. 



