SHORE OF LAKE HURON 35 



Alpena to St. Ignace and on Mackinac Island. Usually in rich shaded 

 ground. Plentiful on Thunder Bay Island, Alpena County. 



Microstylis unifolia (Michx.) BSP. Green adder's-mouth. Rich 

 woods near Bay City, Bay County. G. M. Bradford. 



Liparis leoselii (L.) Richards. Fen orchis. From Bay County to 

 Mackinac Island, Mackinac County. Frequent. 



Calypso bulbosa (L.) Oakes. Calypso. In rich shaded ground on 

 Thunder Bay Island in Alpena County. Apparently infrequent. 



SALICACEAE. Willow Family 



Salix nigra Marsh. Black willow. Banks of streams and in damp 

 places from Bay County to Mackinaw City, Cheboygan County. 

 Usually small trees or mere shrubs. Plentiful. 



Salix nigra falcata (Pursh) Torr. Falcate-leaved black willow. Along 

 small streams near Bay City, Bay County. Frequent. G. M. Bradford. 



Salix amygdaloides Anders. Peach-leaved willow. Common from 

 near Linwood, Bay County, through Arenac County. Not noticed 

 farther north. Reported in Michigan Flora as near Harrisville in 

 Alcona County. 



Salix lucida Muhl. Shining willow. Wet open ground. Common 

 throughout. 



Salix serissima (Bailey) Fernald. Autumn willow. Damp open 

 ground from Bay County to Mackinaw City, Cheboygan County. Oc- 

 casional throughout. 



Salix alba L. White willow. Frequently planted but seldom escaping 

 so far as observed. 



Salix longifolia Muhl. Sand bar willow. Noticed as quite frequent 

 on and near the Lake Huron beach from Bay County to Mackinaw City, 

 Cheboygan County. 



Salix cor data Muhl. Heart-leaved willow. Along small streams and 

 in damp places with other willows. Frequent throughout. 



Salix glaucophylla Bebb. Broad-leaved willow. Noticed as frequent 

 from Arenac County to St. Ignace and on Mackinac Island, Mackinac 

 Count}'. Usually in sandy ground on or near sandy beach of Lake 

 Huron. 



Salix syrticola Fernald. Furry willow. On and near the Lake Huron 

 beach from Point Lookout in Arenac County to St. Ignace and on Macki- 

 nac Island. Common. 



Salix pedicellaris Pursh. Bog willow. In very swampy places from 

 Bay County to Cheboygan, Cheboygan County. Frequent. 



Salix discolor Muhl. Glaucous willow. Along streams and in low 

 ground. Frequent throughout. 



Salix pctiolaris Sin. Slender willow. In wet marshy places from Bay 



