84 APPENDIX III. 
small, irreg. 
spurred; lvs. with bladders, floating, 
medium (1-3 in.), 
st. many; lvs. large, heart-shape . 
very large (5-10 in.), 
st. many; pet. many; lvs. very 
large, peltate 
Fs. red, 
very small, crowded in racemes. 
5 m.; st. 5; lvs. oblong, floating . 
Fis. blue, 
irreg., 6 m.; st. 6; p. 1; lvs. heart- 
arrow form. oa 
Fils. green, 
very small, in spikes. 
4 m.; st. 4; p. 4; lvs. submersed 
and floating 
B. 
HEnrss. 
Fls. white, 
small, reg., 4m.; st. 6; p. 1; 
lvs. pi. 6-15 foliate . 
lvs. simple; root tuberous . 
small, irreg., 3 m.; lvs. =; st. 1; fis. 
many, spirally arranged, sweet 
scented 
medium, with slipper-like lip, 3 m.; 
st. 2; lvs. =; fl. solitary . 
large, with pinkish slipper-like lip, 3 m.; 
Stes las Cae SS IP ok oN SS 
Fis. yellow, 
medium, petals none; sepals 5-9; st. 
many; p. 5-10; lvs. heart-shaped, 
Bladderworts. 39 
(Utricularia species ?) 
Yellow Water Lily. 15 
(Nymphaea advena) 
Lotus. 15 
(Nelumbo lutea) 
Water Persicaria. 12 
(Polygonum amphibium) 
Pickerel Weed. 4 
(Pontederia cordata) 
Pondweeds. 1 
(Potamogeton species ?) 
Cuckoo Flower. 20 
(Cardamine pratensis) 
Cress. 20 
(C. bulbosa) 
Ladies’ Tresses. 10 
(Gyrostachys cernua) 
White Lady Slipper. 10 
(Cypripedium candidum) 
Showy Lady Slipper. 10 
(C. regina) 
Marsh Marigold. 16 
(Caltha palustris) 
