14 FLORA OF MICHIGAN. 



Parnassia parviflora, D. C. Grass of Parnassus. 



Pellcea gracilis, Hook. Cliff-Brake. 



Pinguicula vulgaris, L. Butterwort. 



Pyrus sambucifolia, Cham. & Schlecht. Mountain- Ash. 



Scirpus sylvaticus, L. var. digynus, Boeckl. Bulrush. Club-Rush. 



Solidago Hougjitonii, Torr. & Gray. Golden Rod. 



Woodsia Ilvensis, R. Brown. Fern. 



I. MARQUETTE REGION. 



Alnus viridis, D. C. Mountain Alder. 



Amelanchier alnifolia, Nutt. Service-berry. 



Artemisia borealis, Pallas. Northern Wormwood. 



Carex Michauxiana, Boeckl. Sedge. 



Carex virescens, Muhl., var. costata, Dew. Sedge. 



Erigeron acris, L. Fleabane. 



Erigeron hyssopifolius, Michx. Fleabane. 



Juncus stygius, L. Rush. 



Mertensia paniculata, Don. Lungwort. 



Potamogeton rufescens, Schrader. Pond-weed. 



Potamogeton RobbinsU, Oakes. Pond-weed. 



Primula Mistassinica, Michx. Primrose. 



Scirpus ccespitosus, L. Bulrush. 



Trisetum subspicatum, Beauv., var. molle, Gray. 



J. KEWEENAW REGION. 



Adenocaulon bicolor, Hook. 



Amelanchier oligocarpa, Roem. Shad-bush. Service-berry. 



Anemone parviflora, Michx. Anemone. 



Betula glandulosa, Michx. Dwarf Birch. 



Carex Crawei, Dewey. Sedge. ^ 



Carex exilis, Dewey. Sedge. 



Carex livida, Dewey. Sedge. 



Comandra livida, Richardson. Bastard Toad-flax. 



Collinsia parviflora, Dougl. 



Jva Xanthiifolia, Nutt. 



Juniperus communis, L., var. alpina, Gaud. Juniper. 



Listera cordata, R. Brown. Twayblade. 



Lonicera ccerulea, L. Mountain Fly-Honeysuckle. 



Lonicera involucrata, Banks. Honeysuckle. 



Phacelia Franklinii, Gray. 



Polygonum viviparum, L. Knotweed. 



Ranunculus Flammula, L. var. intermedium, Gray. Smaller Spearwort. 



Rosa Sayi, Schwein. Rose. 



Sagina nodosa, Fenzl. Pearlwort. 



Salix balsamifera, Barratt. Willow. 



Sisymbrium humile, Meyer. Hedge Mustard. 



Stellaria borealis, Bigel. Northern Starwort. 



Vaccinium myrfilloides, Hook. Bilberry. 



Viola Selkirkii, Pursh. . Great-spurred Violet. 



CLIMATE AND DISTRIBUTION. 



" The sinuosities of the several isothermal lines will demonstrate at a 

 glance the peculiar character of the climate of Michigan, and the fact that 

 both in summer and winter, it is better adapted to the interests of agricult- 

 ure and horticulture, and probably also to the comfort and health of its 

 citizens, than the climate of any other northwestern state. The marked 

 peculiarity of the climate of Michigan in these respects is attributable to 

 the influence of the great lakes by which the state is nearly surrounded. 

 It has long been known that considerable bodies of water exert a local 

 influence in modifying climate and especially in averting frosts, but it has 

 never been expected that Lake Michigan, for instance, impresses upon the 

 climatic character of a broad region an influence truly comparable with 

 that exerted by the great ocean." WINCHELL. 



