No. 50.] 173 
Thuya, L. Arbor Vitce. 
occidentalis, jL. Rocky hills, along rivers . May. 
CuPREssus, L. Cypress. 
thuyoides, L. White Cedar. Swamps, Long Island. May. 
JuNiPERUs, L. Juniper. 
virginiana, L. Red Cedar. Rocky banks and dry hills. Sir 
W. Hooker considers this species as identical 
with J. sabina. May. 
communis, X. Common Juniper , Dry rocky woods . May. 
Sub-Order Taxine^. 
Taxus, L. Yew. 
canadensis, L . American Yew, Running or Ground Hemlock . 
Moist rocky places . April . 
CLASS IIL ENDOGENS, or MONOCOTYLEDONS. 
Order AMARYLLIDACE^ . The Narcissus Tribe. 
Hypoxis, L. Star Grass. 
erecta, L. Woods. May-July. 
Order IRIDACEiE . The Iris Tribe. 
SiSYRiNCHiuM, L. Blue-eyed Grass. 
anceps, L. Meadows. July. 
Var. mucronatum. S. mucronatum, Michx . Sandy woods, 
Long Island, (fee . 
Iris, L. 
versicolor, L. I. virginica, Pursh. Blue Flag . Wet grounds. 
June- July . 
virginica, L. 1. prismatica, Pursh. I, gracihs, Bigel. Margins 
of swamps . June . 
Order HYDROCHARACEtE . The Frog-bit Tribe. 
Hydrocharis, L. Frog's-bit. 
cordifolia, Nutt, Braddock's Bay, Lake Ontario . Dr. Bradley . 
