Bickett—The Larger Aquatic Plants of Green Lake. 
397 
10. “ natans L. 
11. ‘‘ pectinatus L. 
12. Richardsonii (Benn.) Rydb. 
13. zosterifolius Schumacher. 
14. Radicula aquatica (Eat.) Robinson. 
15. Ranunculus aquatilis L. var. capillaceus DC. 
16. Vallisneria spiralis L. 
17. Heteranthera dubia (Jacq.) MacM. 
Emersed or floating plants, growing in scattered patches. 
18. Bidens Beckii Torr. 
19. Carex sp. 
20. Castalia odorata (Ait.) Woodville & Wood. 
21. Lemna trisulca L. 
22. Nymphaea advena Ait. 
23. Sagittaria heterophylla Pursh. 
24. latifolia Willd. 
25. Seirpus spp. 
26. Typha sp. 
27. Zizania aquatica L. 
Attached algae. 
28. Cladophora sp. 
29. Nostoc sp. 
30. Oedogonium sp. 
31. Rivularia sp. 
32. Spirogyra sp. 
33. Vaucheria tuberosa. 
Table 2. Percentage of water in plants. 
Species 
Per Cent of Water 
Ceratophyllum . 
92.9 
Chara . 
84.9 
Drepanodadus . 
81.1 
Elodea . 
92.9 
Myriophyllutn . 
90.2 
Naias . 
90.2 
Potamogeton (all spp.). 
88.1 
Ranunculus . 
88.6 
Vallisneria . 
92.9 
Heteranthera . 
90.2 
88.6 
Cladophora .. 
89.2 
Average. 
89.2 
