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i 



— Plate I J. — 



Fig. I. — Byblis gigantea (W. Australia). Inset: commensal (true) bug, 



as yet undescribed. 

 Fig. 2. — Drosophyllum lusitanicum, in culture (Munich). Right, a piece 



of a leaf with captured prey. 

 Fig. 3. — The same (Photograph by Dr. A. Quint.^nilha). 

 Fig. 4. — Pinguicida vulgaris (Alberta, Canada). X '2. 

 Fig. 5. — At left of numeral, a piece of a leaf of Byblis; at right of nu- j 



meral a part of a leaf of Drosera capensis. ! 



Fig. 6. — Pinguicida vulgaris. Two views of the same plant taken 24 



hours apart to show leaf movements. Collected 20 mi. east of j 



Crescent City, Calif. J 



Fig. 7. — Drosera capensis. X V^. \ 



Fig. 8. — Time-lapse motion pictures of D. capensis, showing leaf move- ,1 



ments. Total period about one and one half hours. 

 Fig. 9. — D. rotundifolia, a leaf with captured prey. 

 Fig. 10. — Pinguicula vulgaris, a small area of leaf surface with the muci- 1 



lage glands in the focal plane of the camera lens. 

 Fig II. — The same, with the focal plane of the lens at the level of the 



digestive glands. A captured insect is seen. 



