OBSERVED IN FLOWER, SPRING OF 1886. 97 



Fritilaria Imperialis. Crown Imperial. 



Lunaria bienis. Honesty. 



Lamium album, Linn. White Dead Nettle. 



Lamium maculatum, Linn. Spotted-leaved Dead Nettle. 



Corydalis aurea. Golden Corydalis. 



Dicentra eximia. Dutchman's Breeches. 



Erauthis hiemalis. Winter Aconite. 



Alyssum Saxtile. Eock Alyssum. 



Epimedium alpinum. Barren Wort. 



Epimedium macranthum. Large -flowered Barren Wort. 



NATIVE GRASSES, SEDGES, ETC. 



Poa annua, Linn. Low Spear Grass. 



Carex prsecox, Jacq. European Sedge. 



Carex vulgaris, Fries. Sedge. 



Carex Pennsylvania, Linn. Wood Sedge. 



Luzula campestris, D C. Wood Rush. 



Equisetum arvense, Linn. Common Horsetail. 



NATIVE TREES AND SHRUBS. 



Acer dasycarpum, Ehrhart. White or Silver Maple. 



Acer rubrum, Linn. Red or Swamp Maple. 



Acer saccharinum, Wang. Sugar or Rock Maple. 



Acer platanoides, Linn. Norway Maple. 



Salix discolor, Muhl. Glaucous-leaved Willow. 



Salix humilis, Marshall. Prairie Willow. 



Salix cordata, Muhl. Heart-leaved Willow. 



Salix petiolaris, Smith. Petioled Willow. 



Salix viminalis, Linn. Basket Willow. 



Salix livida, Wahl. var. occidentalis. Livid Willow. 



Salix alba, Linn. White Willow. 



Ulinus Americana, Linn. White Elm. 



Ulmus campestris, Linn. English Elm. 



Alnus incaua, Willd. Hoary Alder. 



Alnus serrulata, Ait. Smooth Alder. 



Populus tremuloides, Michx. American Aspen. 



Populus grandidentata, Michx. Large-toothed Aspen. 



Populus balsamifera, Linn. var. candicans. Balm of Gilead. 



Populus alba, Linn. White Poplar. 



Corylus Americana, Walt. Wild Hazel-nut. 



Corylus rostrata, Ait. Beaked Hazel-nut. 



Ostrya Virginica, Willd. Hop Hornbeam. 



Carpinus Americana, Michx. American Hornbeam. 



Taxus baccata, Linn. American Yew. 



