126 
HALORAGACEAE, water milfoil family 
MYRIOPHYLLUM, water milfoil 
¢Myriophyllum aquaticum (Vell. Conc.) Verdc., parrot’s feather, 
water feather [S, G: M. brasiliense Cambess.] 
(Verdcourt, 1973), p. 1110 
M. heterophyllum Michaux, water milfoil, coontail, p. 1110 
- pinnatum (Walter) Britton, Sterns & Pogg., green parrot’s 
feather, rough water milfoil, p. 1110 
*+M. spicatum L., Eurasian water milfoil (Couch and Nelson, 
1986; Yatskievych, 1990) 
PROSERPINACA, mermaid weed 
Proserpinaca palustris Lie 2114 
var. amblyogona Fern. 
var. crebra Fern. & Griscom [M: P. palustris] (the infraspecific 
taxonomy of P. palustris requires further study) 
var. palustris 
HAMAMELIDACEAE, witch hazel family 
HAMAMELIS, witch hazel 
Hamamelis vernalis Sarg., Ozark witch hazel, vernal witch hazel, 
p. 788 
f. carnea Rehder 
f. tomentella Rehder 
f. vernalis 
H. virginiana L., eastern witch hazel, American witch hazel, p. 786 
f. virginiana 
LIQUIDAMBAR, sweet gum 
Liquidambar oe L., sweet gum, American sweet gum, 
p. 
S: Steyermark ¢: Great Plains Flora M: Mohlenbrock 
