LIST OF ILLUSTRATIONS 



1. Ampelopsis Veitchii, with adhesive pads . . Frontispiece 



2. Effects of drought and moisture on timber . To face page 8 



3. Ononis spinosa, experiments with ... 16 



4. Zilla myagroides. Desert and cultivated forms 22 



5. Ranunculus heterophyllun .... 28 



6. R. heterophyllus, experiments with ... 34 



7. R. trichophyllus, (a) with submerged and (6) 



aerial foliage 32 



8. Proserpinaca palustris, experiments with . 34 



9. Cyrillu, with aerial and submerged foliage . ,, 36 



10. Trichosanthes, with adhesive pads ... 38 



11. Plocamium coccineum, with adhesive pads . 40 



12. Convolvulus lanatus, a non- climbing desert 



species 42 



13. Periwinkle (vinca major), climbing in darkness ,, 44 



14. Corydalis daviculata, showing transitions 



between leaves and tendrils . ,,46 



15. Vine, showing transitions between tendril and 



inflorescences 48 



16. Salicomia herbucen, a physiological xerophyte ; 



and Littorella lacmtris, a hydrophyte . 62 



17. Melampyrum pratense, showing details of 



parasitism >, 62 



18. Pasfiftora c&ruha, accidentally parasitic on 



Euonymus japonicus ; and Melampyrum 



arvense, parasitic on Tare . . 70 



