12 C. K. Dodge 



Opuntia Rafinesquii Engclm. 

 Western Prickly Pear 



The above scientific name is given in Gray which specifically mentions 

 Michigan as part of its range. Britton and Brown call it O. hiimlfnsa Rat"., 

 and the distribution is given as "Ohio to Minnesota, etc." In the Michigan 

 Flora under the latter name the following localities are mentioned: "Common 

 in Newago County along the Muskegon River, Cedar Creek Tp., Muskegon 

 Co., C. F. Wheeler; and a stunted variety on sand barrens near Greebville, 

 J. Satterlee ; also northward into British Am., Englemann." 



The writer first saw the species in 1910, on Point Pelee, Essex County, 

 Ontario. In September, 1916, while making a botanical survey about the 

 Huron Mountain Club in Marquette County, Michigan, Miss Anne Rus- 

 sell, of Detroit, discovered it in rocky places on a near-by granite hill known 

 as Huron Mountain. In August, 191 7, the writer noted it as plentiful 

 about New BuiTalo, Berrien County. It has been reported on rocky hills 

 about the city of Marquette and on sandy open ground west of Alpena in 

 Alpena County. 



Osmorhiza species 

 The Sweet Cicelies 



In Gray and Britton and Brown four species and one variety of sweet 

 cicely are mentioned and described. In Britton and Brown the generic name 

 is Washingtonia, in Gray, Osmorhiza. In this paper the latter name will 

 be used. The manuals apparently do not specifically credit Michigan with 

 more than two species, Osnwrhisa Claytoni (Michx.) Clarke, woolly sweet 

 cicely, and O. longistylis (Torr.) DC, smoother sweet cicely. The Michi- 

 gan Flora mentions these two and reports them common throughout the state. 

 The variety O. longistylis villicaitlis Fernald, pubescent smoother sweet 

 cicely, has been noted as frequent from St. Clair County north and west to 

 Delta County. In 1907, the writer discovered O. divaricata Nutt., western 

 sweet cicely, in rich shaded ground on Thunder Bay Island, Alpena County,'' 

 and again in rich woods near Eckerman, Chippewa County, in 1914. In the 

 same year 0. obtiisa (Coult. & Rose) Fernald, blunt-fruited sweet cicely, 

 was noted in rich woods in Chippewa County and throughout Alger County. 

 It appears that the last two species may be considered abundant throughout 

 the eastern part of the Upper Peninsula, and perhaps occasional in the north- 

 ern part of the Lower Peninsula. 



Gentiana linearis Froel. var. latifolia Gray 

 Gray's Gentian 



Gray's gentian is listed in Gray under the above scientific name and the 

 range is given as "Lake Superior ; N. B." Britton and Brown record the 

 species as Dasysfcl^Jiaiia grayi (Kusnezow) Britton. There is no reference 



"Additions to the Michigan I'lora, 1 y W. 1. Beal. loth Ann. Rept. Mich. Acad. 

 Sci.. IQ08, p. 89. 



