176 
[Assembly 
LisTERA, R. Br. 
cordata, R. Br. Sphagnous swamps. June- July. 
GOODYERA, jR. Br. 
ipuhescens, R. Br. Shady fertile woods . July- August, 
repens, R.Br. Shady moist woods, northern counties . July. 
Cypripedium, L. Ladies^ Slipper. 
pubescens, Willd. C. parviflorum, Ait. Mocasin Flower, NoaKs 
Ark . Rocky moist woods . May . 
acaule, Ail. Dry v/oods and sandy thickets. May, 
spectabile, Sw. Swamps. June-July, 
arietinum, Ait. Near Oneida lake . Dr. Gray . 
Order PONTEDERIACE^ . 
pontederia, l. 
cordata, L. Pickerel-weed. In water. July- August. 
Var. angustifolia, Torr . P. angustifolia, Pursh. Mountain 
lakes. Pursh. 
Schollera, Schreb. 
graminifolia, Muhl. Leptanthus gramineus, Michx. In flowing 
waters . July- August . 
Heteranthera, Ruiz and Pavon . 
reniformis, R. <^ P. Leptanthus reniformis, Michx. Muddy 
banks of rivers, Fishkill, Hudson, &;c. July- 
August . 
Order MELANTHACE^E . The Colchicum Tribe. 
ZiGADENUS, Michx. 
glaucus, Nutt. Shore of Lake Erie. Dr. Beck. 
Lermanthium, Willd . 
virginicum, Willd. Melanthium virginicum, L. Wet meadows. 
Orange county. Dr. Horton, fide Beck. Is not 
this L. hybridum? 
Veratrum, L. White Hellebore. 
virida, Az^. Swamps. May. 
