THE CAYUGA FLORA. 85 



BETULACEiE. 



343. Betula, Touru. 



SiS. B. lenta, L. Black Birch. Sweet Birch. (H. and C.) 



Woods and ravines ; frequent. May 10-25. 

 819. B. lutea, Michx. YELLOW Birch. (H. and C.) 



Ravines and swampy woods ; frequent. May 10-25. 



IB. alba, var. populifolia, Sp. and B. papyracea, Ait are in Sart- 

 Well's Cat. of 1844 ; "probably from Wayne Co.," Wright.~\ 



344. Alnus, Tourn. 



520. A. incana, Willd. Speckled AldER. 



Swamps and near streams.; the common alder. Mar. 20-April. 



521. A. serrulata, Willd. SMOOTH ALDER. (H. and C.) 

 Shores ; scarce, always in vicinity of Cayuga L. Mar. 20-April. 

 Indian Spring Marsh, and marsh along north end of Cayuga St. 



Banks of Inlet, and near Light-house. South of Ludlowville Sta. 

 Crobar Pt. Lockwood's Flats. More or less abundant west side of 

 Cayuga Marshes. 



CUPULIFER/E. 



345. Corylus, Tourn. 



822. C. Americana, Walt. AMERICAN HAZEL-NUT. (H. and C.) 

 Hillsides and by streams ; frequent. Mar. 20-April. 

 Chiefly in the Negusena valley ; along the creek near the McGraw 

 barns. On Larch Meadow; near Coy Glen and the Valley Cemetery. 

 Case, ravine, north side, also south of Eddy Dam, above the path. 



S23. C. rostrata, Ait. Beaked HAZEL-NUT. (H. and C.) 



Hillslopes and ravines ; rather common. Mar. 20-Apr. 

 Found in or near all our ravines, in copses near the lake, and on 

 the hills in Danby and Caroline as well as in the lower valleys. 



346. OsTRVA, Micheli. 



824. O. Virginica, Willd. Iron-wood. Deer-wood. (H. and C.) 

 Woods and ravines ; common. Apr. 25-May 15. 



347. Carpinus, Linn. 



S25. C. Caroliniana, Walt. (C. Americana, Michx.) Blue Beech. 



(H. and C.) 

 Swampy woods and ravines ; common. May 1-20. 



348. Quercus, Linn. 

 826. * Q. alba, L. White Oak. (H. and C.) 



Woods ; common. May 25-June 10. 



527. Q. macrocarpa, Michx. Bur-Oak. (H. and C.) 

 Low grounds and sunny banks of ravines ; infrequent. May 25- 

 June 5. 



Near Renwick. Below Buttermilk Falls. Summit Marsh. North 

 of Freeville. Ca}*uga Marshes and elsewhere. 



A form with shallow, flat acorn-cups occurs on Lake Ridge Point. 



528. Q. bicolor, Willd. Swamp White-oak. (H. and C.) 

 Low grounds ; frequent. May 25-June 5. 



