FLORA OP MICHIGAN. 39 



In July, among the hosts of plants, may be found the flowers of many 

 of the figworts, including gerardias; also the mints, the sumachs, the St. 

 John's- worts, dogbanes and milkweeds, and the sedges. 



August and September are noteworthy for many composite, including 

 asters, golden-rods and wild sunflowers. In this procession may be seen 

 the lilies and water lilies, the lobelias, and the weedy amaranths, 

 euphorbias, pigweeds and polygonums. 



Some time in October when we find the closed and the fringed gentians 

 in their deep blue, and the slender yellow petals of the witch-hazel, we 

 shall know that the last of the procession of wild flowers of the year has 

 arrived, and that for a long six months we must wait for the beginning of 

 another floral display. 



PLANTS INDICATING A FERTILE SOIL. 



Acer saccharinum, Wang, Sugar maple, when the wood is solid and of fine 



quality. 



Acer saccharinum, Wang., var. nigrum, Torr. & Gray. Black sugar maple. 

 Adiantum pedatum, L. Maidenhair Fern. 

 Angelica hirsuta, Muhl. Angelica. 

 Apios tuberosa, Mcench. Wild Bean. Ground-nut. 

 Ariscema triphyllum, Torr. Indian Turnip. 

 Asplenium angustifolium, Michx. Spleenwort. 

 thelypteroides, Michx. Spleenwort. 

 Cassia Marilandica, L. Wild Senna. 

 Collinsonia Canadensis, L. Rich-weed. Stone-root. 

 Cratcegus tomentosa, L. Hawthorn. 

 Dentaria diphylla, Michx. Toothwort. Pepper-root. 

 " laciniata, Muhl. Toothwort. Pepper-root. 

 Dicentra Canadensis, DC. Squirrel Corn. 



Cucullaria, DC. Dutchman's Breeches. 

 Fraxinus Americana, L. White Ash. 



quadrangulata, Michx. Blue Ash. 

 Hydrastis Canadensis, L. Golden Seal. 

 Hydrophyllum Canadense, L. Waterleaf. 

 Virginicum, L. Waterleaf. 

 Juglans cinerea, L. Butternut. 



" nigra, L. Black Walnut. 

 Menispermum Canadense, L. Moonseed. 

 Orchis spectabilis, L. Showy Orchis. 

 Podophyllum peltatum, L. May- Apple. Mandrake. 

 Quercus alba, L. White Oak. When well grown. 



" macrocarpa, Michx. Bur-Oak. 

 Ribes Cynosbati, L. Prickly Gooseberry. 

 Rubus occidentalis, L. Black Raspberry. 

 Scrophularia nodosa, L., var. Marilandica, Gray. Figwort. 

 Taraxacum offlcinale, Weber. Dandelion. 

 Tilia Americana, L. Basswopd. 

 Ulmus Americana, L. American Elm. 



" racemosa, Thomas. Rock Elm. 

 Uvularia grandiflora, Smith. Bellwort. 

 Verbena hastata, L. Blue Vervain. , 



When well grown and of good size, several other trees are indications of 

 good soil. 



PLANTS INDICATING A BAEEEN SOIL. 



For these, the reader is^, referred to the list of plants found on the Jack- 

 pine plains. 



