SHORE OF LAKE HURON 19 



Equisetum fluviatilcL. Swamp horsetail. Pipes. Wet swampy places, 



often in shallow water. Abundant. 



Equisetum hyemale intermedium. A. A. Eaton. Seouring rush. Dry 

 open or shaded ground. Plentiful throughout. 



Equisetum hyemale robustum (A. Br.) A. A. Eaton. Stout scouring 

 rush. Dry, open or partially shaded ground. Occasional throughout. 



Equisehim variegatum Schleich. Variegated equisetum. Usually in 

 damp sand on or near Lake Huron beach. Often plentiful. 



Equisetum scirpoides Michx. Sedge-like equisetum. Dryish, open or 

 shaded places. Common and in spots abundant about St. Ignace and 

 on Mackinac Island. 



LYCOPODIACEAE. Club Moss Family 



Lycopodium ■ lucididiwi Michx. Shining club-moss. Damp rich woods. 

 Frequent throughout. 



Lycopodium annotinum L. Stiff club-moss. Usually in rich shaded 

 ground. Frequent throughout. Plentiful in hardwoods. 



Lycopodium clavatum L. Common club-moss. Usually in dryish 

 shaded ground. Frequent throughout. 



Lycopodium obscurum L. Ground pine. In woods. Frequent through- 

 out. 



Lycopodium obscurum dendroideum (Michx.) D. C. Eaton. Tree-like 

 ground pine. Noticed mostly in rich woods. Frequent throughout. 



Lycopodium complanatum L. Trailing christmas-green. Dryish 

 shaded ground. Occasional throughout. 



SELAGINELLACEAE. Selaginella Family 



Selaginella selaginoides (L.) Link. Collected on Mackinac Island. By 

 E. J. Hill according to botanical notes of the late Prof. C. F. Wheeler. 



Selaginella apus (L.) Spring. Creeping selaginella. Damp open 

 ground. Frequent throughout. A small very pretty moss-like plant. 



TAXACEAE. Yew Family 



Taxus canadensis Marsh. American yew. In the shade of evergreens 

 or in damp hardwoods and often abundant from Bay County to Macki- 

 nac Island, Mackinac County. 



PINACEAE. Pine Family 



Pinus strobus L. White pine. Small trees throughout and a few 

 large ones. Formerly very abundant. Thousands of seedlings and 

 small trees noticed. 



Pinus banksiana Lamb. Jack pine. Noticed from near Au Ores in 

 Iosco County to Rogers in Presque Isle County. Very abundant in 

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