— Plate 20. — 



Fig. I. — Utricular ia vulgaris. Leaf with traps. 



Fig. 2. — Utricularia aff. emarginata, showing water stolons, and those en- 

 tering the muddy substrate. 



Fig. 3. — U. purpurea. 



Fig. 4. — • U. intermedia. 



Fig. 5. — U. lateriflora (x J^). 



Fig. 6. — U. capensis. The leaves (x 2). 



Fig. 7. — U. volubilis. 



Fig. 8. — U. Menziesii. 



Fig. 9. — The same, a young plant, showing better the distribution in 

 space of the traps. One tuber is seen. 



Fig. 10. — Polypompholyx tenella, an entire plant, the scape in bud. En- 

 larged about 6 times. Two forms of traps. 



Fig. II. — Photograph (x 8) of a tadpole (Biifo marinus), 4 days old, 

 captured by the head by a trap of U. flexuosa at Gordonvale, Queens- 

 land (transmitted by Mr. J. H. Buzacott, Feb. 10, 1936)- 



Fig. 12. — Floats at the base of a young inflorescence of U. stellaris (Sin- 

 gapore). 



I 



