12 [Assembly 
Order XVII. CISTACEiE. The Rock-rose Tribe. 
Helianthemum, Tourn. 
Canadense, Michx. Sandy soils. June. 
Lechea, L. 
major, Michx. Dry woods. July, September. 
thymifolia, Pursh. Sea coast of Long Island. July, September. 
minor, Lam. Dry soils. June, September. 
Hudsonia, L. False Heath. 
ericoides, L. Dry sandy woods. Long Island. May. 
tomentosa, JYuit. Sea coast of Long Island, Shore of Lake Cham¬ 
plain, &c. 
Order XVIIL HYPERICACEiE. St. John’s Wort Tribe. 
Hypericum, L. St. Johri^s Wort. 
pyramidalum, Ait. Banks of rivers. Northern and western parts 
of the State. July. 
Kalmianum, L. Falls of Niagara. August, 
perforatum, L. (^Common St. John’s Woit.) Fields, &c. Intro¬ 
duced. July, August. 
corymbosum, Muhl. Open woods and meadows. July, August, 
ellipticum, HooTc. Moist grounds. Northern and western parts 
of the State. 
mutilum, L. (parviflorum, Muhl.) Low grounds, July, Sept. 
Canadense, L. Wet sandy places. June, August, 
sarothra, Michx, Sandy fields, &c. June, August. 
Elodea, Adans. 
Virginica, JVidt. Swamps. July, August. 
Order XIX. ILLECEBRACE^E. The Knotigrass Tribe. 
Anychia, Michx. 
dichotoma, Michx, Dry soils. June, August. 
Spergula, Bartl. 
arvensis, L. Waste grounds. Introduced, 
rubra, Torr. and Gr. (Arenaria rubra, L.) Sandy fields, parti¬ 
cularly near salt, water. 
