INDEX TO CHAPTER IV 



Common White Water - crow- 

 foot (^Raniinciilns aqiiatilis, 

 var. trichophylhis), white. 



Yellow Water-crowfoot {Raniin- 

 cuhis iiiultiJidHs), bright yel- 

 low. 



Var. terrestris. 



Stiff Water-crowfoot (^Raniincii- 

 liis circinatus). 



Water-shield (Brasenia peltata), 

 purple. 



Yellow Nelumbo. Sacred Bean. 

 Water - chinquapin {Nelumbo 

 liitt'o), yellow. 



Water-nymph. Water-lily {Nyni- 

 phaca odorata), white or rarely 

 pink. 



Yellow Pond-lily {Nuphar ad- 

 vena), yellow or with a purple 

 tinge. 



Nuphar ICalmianuin, yellow. 



U m b e 1 1 e d Water-pen nyv/ort 

 {Hydrocotyle umbcllata), 

 white. 



Hydrocotyle verticillata. 



Slum Carsonii, white. 



Berula (^Berula angustifolia), 

 white. 



Water - milfoil {Myriophyllum 

 verticillatuui), greenish or 

 white. 



MyriophylluiH scabratuvi . 



]\I\ 'riop hyllii in a inbigu u in . 



Water-marigold {Bidens Beckii), 

 yellow. 



17. Featherfoil {Hottonia injlafa), 



white. 



18. Floating-heart {Liinnanthemum 



lacunosiiin), white. 



19. Common Bladderwort {Utricu- 



laria vulgaris), bright yel- 

 low. 



20. Utricularia subulata, yellow. 



21. Utricularia resupinata, purple. 



22. Utricularia injiata, yellow. 



23. Utricularia coriiuta, yellow. 



24. Water - weed {Elodea Canaden- 



sis), greenish. Tape or eel- 

 grass ( Valisneria spiralis). 



25. Pickerel - weed {Pondeteria cor- 



data), blue. 



26. Mud - plantain {Heterantherare- 



niforiiiis), white or pale blue. 



27. Water Star-grass {H. graminea), 



light yellow. 



28. '&wv-vee.d{Sparganium sijuplex), 



white. 



29. Broad-fruited Hur-reed {Sparga- 



niuni eurycarpuin). 

 Small Bur-reed {S. niiniinuni). 



30. Green Arrow - arum {Peltandra 



Virginica), green. 



31. Wild Calla. Water-arum (Calla 



palustris), white. 



32. Golden-club {Orontinm aquati- 



cum), yellow. 



33. Seven-angled V\\>Q\voxi{Eriocau- 



lon septangulare), white. 



34. Greater Duckweed {Spirodela 



polyrrhiza). 



