An Ecological Study of Buckeye Lake. 115 



Dioscoraceae. 



Dioscorea villosa L. In woods eastern margin of lake at Avon- 

 dale. 



Iridaceae 



Iris versicolor L. Margin of forest zone at mouth of Honey 

 creek and in swampy wood north of Lakeside. 



Orchidaceae, 



Habenaria clavellata (Mx.) Spreng. Common in forest of Cran- 

 berry Island and in the Sphagnum bog Island No. 2. 



H. lacera (Michx.) R. Br. Frequent in wooded border Cranberry 

 Island. In the center of Lewis Island the orchid was grow- 

 ing among Solidago. 



H. leucophaea (Nutt.) Gray. Two plants found in thicket south- 

 east side Cranberry Island. 



Pogonia ophioglossoides (L.) Ker. Quite generally distributed 

 in the thicket and in the Bog-meadow near margin of thicket, 

 Cranberry Island. 



Calopogon pulchellus (Sw.) R. Br. Abundant near the margin 

 of the Bog-meadow, Cranberry Island. 



Arethusa bulbosa L. Near the margin of the Bog-meadow, Cran- 

 berry Island. 



Gyrostachys cernua (L.) Kuntze. Thicket southeast portion of 

 Cranberry Island. 



Dicotylae. 



Salicaceae. 



Populus deltoides Marsh. Buckeye Park, margin of Crane's 

 pond and levee north and west shores of lake. 



Salix nigra Marsh. The most widely distributed species at the 

 margins of the islands and lake, along the canal and on the 

 levee. 



S. alba L. Next to 6". nigra the most common and widely dis- 

 tributed Salix. 



S. sericea Marsh. Margin of thicket, Cranberry Island. 



S. petiolaris J. E. Smith. ]\Iargin of thicket, Cranberry Island, 

 and other smaller islands more abundant than the preceding. 



