LIST OF ILLUSTRATIONS 



FIG. PAGE 



Nymphaea lutea, L. [Otto von Brunfels, Herbarum vivae 



eicones, 1530] ........ Frontispiece 



1. Sagittaria sagittifolia, L. Inflorescence. [A. A.] 10 



2. Sagittaria sagittifolia, L. Infructescence. [A. A.] 10 



3. " Gramen bulbosum aquaticum" [Gaspard Bauhin, 1620] . . II 



4. Sagittaria sagittifolia, L. Tuber and submerged leaves. [A. A.] . 13 



5. Sagittaria sagittifolia, L. Leaves. [A. A.] 14 



6. Sagittaria sagittifolia, L. Plant with stolons and tubers. [A. A.] . 16 



7. Sagittaria sagittifolia, L. Base of plant with old tuber and young 



stolons. [A. A.] 18 



8. Sagittaria sagittifolia, L. Diaphragm of petiole. [Blanc, M. le 



(1912)] ..... 19 



9. Ecbinodorusranunculoides^L.^Engtlm. Land and water forms. [A. A.] 21 



10. Nymphaea lutea, L. Rhizome. [A. A.] 25 



11. Castalia alba, Greene. Rhizome. [A. A.] 26 



12. Nymphaea lutea, L. Rhizome with submerged leaves. [A. A.] . 27 



13. Castalia alba, Greene. Seedlings. [Massart, J. (1910)] . . 28 



14. Cabomba. Shoot with floating and dissected submerged leaves. 



[Goebel, K. (1891-1893)] . . 29 



15. Castalia alba, Greene. Peduncle and flower-bud. [A. A.] . . 31 



16. Victoria regia, Lindl. Seedling. [A. A.] 33 



17. Nymphaea lutea, L. Fruit. [A. A.] 34 



1 8. Nymphaea lutea, L. Seedlings. [A. A.] ..... 35 



19. Castalia Lotus, Tratt. Germination of tuber. [Barber, C. A. (1889)] 37 



20. Brasenia. Mucilage hairs. [Goebel, K. (1891-1893)] ... 38 



21. Map of existing and extinct distribution of Nelumbo. [Berry, E. W. 



(I9 1 ?)] 39 



22. Limnanthemum nymphoides, Hoifmgg. and Link. [A. A.] . . 41 



23. Limnanthemum nymphoides, Hoffmgg. and Link. Rhizome. [Wagner, 



R. (1895)] . 41 



24. Hydrocharis Morsus-ranae, L. Buds. [A. A.] .... 43 



25. Hydrocharis Morsus-ranae, L. Leaf anatomy. [A. A.] ... 44 



26. Hydrocharis Morsus-ranae, L. Stomate. [A. A.] .... 45 



27. Hydrocharis Morsus-ranae, L. T. S. submerged leaf. [A. A.] . 45 



28. Hydrocharis Morsus-ranae, L. Midrib and inverted bundle from 



leaf. [A. A.] 46 



29. Hydrocharis Morsus-ranae, L. Plant with turions. [A. A.] . . 47 



