WOMEN BOTANISTS OF OHIO. Ill 



ing, carrying the reader into the glacial epoch 

 and pre-glacial remains. 



"That this swamp," she writes, "which was 

 known as the 'Big Swamp,' dates from early post- 

 Wisconsin time is shown by the presence of a cran- 

 berry-sphagnum bog which still exists in Buckeye 

 Lake. This bog, locally known as the Cranberry 

 Marsh, lies in the eastern part of the lake, close to 

 and parallel with the north shore. . . . The vege- 

 tation is of peculiar interest ; for it consists of typical 

 bog plants characteristic to-day of high temperature 

 latitudes and generally accepted to be relics of early 

 post-glacial times, stranded and persisting, and now 

 surrounded by the normal vegetation of the present 

 climatic conditions. 



"The typical bog plants are several species of 

 Sphagnum, the Cranberry (Oxycoccus macrocarpus) , 

 the Sundew (Drosera rotundifolia) , several species 

 of bog sedges, as Carex limosa, and C. filiformis, the 

 Buckbean (Menyanthes triloba), and Seheuchzeria 

 palustris, forming a bog-meadow bordered by a zone 

 of bog-shrubs, of which the Poison Sumac (Ehus 

 vernix), the Black Alder (Ilex verticillata), and the 

 Choke Berry (Aronia arbutifolia and A. nigra), are 

 the most characteristic." 



Miss Detmers further relates how this 

 Sphagnum Bog was separated from the main 

 land and floats, an important link in the study 

 of the earth's history. 



