The Flora of the Cayuga Lake Basin 217 



Six Mile Creek; Fall Creek (£>.!); Taughannock Gorge (D. !) ; Salmon Creek; 

 Big Gully (D.\) ; Paine Creek; common in the McLean region; rare or absent on the 

 sterile southern hilltops and along the sterile eastern slopes of Cayuga Lake. 



W. Que. and w. N. H. to Minn., southw. to Ga. and Mo. ; rare or absent on the 

 Coastal Plain and in the sterile parts of N. E. A plant of the rich lands of the 

 interior. 



13. Clematis L. 



a. Flowers cymose-paniculate, 2 cm. in diam., white. 1. C. virginiana 



a. Flowers solitary or few, 5—7.5 cm. in diam., purple ; outer stamens enlarged and 

 petaloid; leaflets less toothed. 2. C. verticillaris 



1. C. virginiana L. Virgin's Bower. White Clematis. 



River banks, thickets, and swamps, in rich sandy loam ; frequent. July 20-Aug. 



Frequent along the banks of the Inlet ; Ithaca flats ; along the larger streams ; and 

 elsewhere. 



N. S. to Man., southw. to Ga., Tenn., and Mo., including the Coastal Plain but less 

 common there. 



2. C. verticillaris DC. Purple Clematis. 



Cliffs and ravines, in calcareous soils ; scarce. May 10-30. 



Buttermilk Glen, near " Pulpit-Rock" (D.\) ; Cascadilla Glen, w. of campus bridge 

 (D. !) ; Fall Creek, below the suspension bridge (D. !) ; McKinney Twin Glens (D.) ; 

 n. of Esty Glen (D.) ; Taughannock Gorge, above the falls (D.\) and e. of the 

 sanatorium. 



E. Que. to Hudson Bay and Man., southw. to Del., W. Va., N. C, Mich., and 

 Minn. ; rare or absent on the Coastal Plain. 



50. MAGNOLIACEAE (Magnolia Family) 



a. Carpels follicular; anthers introrse ; leaves acute. 1. Magnolia 



a. Carpels samaroid ; anthers extrorse ; leaves truncate and lobed. 2. Liriodendron 



1. Magnolia L. 

 1. M. acuminata L. Cucumber Tree. 



Woodlands, in rich light loamy soils ; frequent. May 20-June 10. 



Frequent in the woods of Enfield and Newfield (D.) ; Danby, abundant in Durfec 

 Hill woods, also elsewhere (Z?.) ; Brookton; Caroline; upper Buttermilk Reservoir, 

 fine trees; Six Mile Creek valley (D. !) ; Renwick slope; Cascadilla Creek, above 

 Judd Falls (£>.!) ; McGowan Woods (£>.!) ; Turkey Hill; Dart Woods (D.) ; Ring- 

 wood (D. !) ; rare in the low ground of Freeville and McLean; "only occasional in 

 the damp woods from Forest- Flome north through Groton, Genoa, to Sherwood and 

 Big Gully Brook, and on the west side of Cayuga L." (D.) ; s. of Mud Pond, 

 Conquest. 



Cent. N. Y. to Ont. and 111., southw. to Ga., Miss., and Ark. A tree of the west 

 slope of the Allegheny Mts. and of the Mississippi Valley. 



2. Liriodendron L. 

 1. L. Tulipifera L. Tulip Tree. Whitewood. Yellow Poplar. 



Woodlands, in rich light loamy soils ; frequent. June 1-20. 



Occurrence much as in the preceding species, but more frequent : Enfield Glen ; 

 Six Mile Creek; woods near old Armory (D. !) ; back of Sibley College (D. !) ; Fall 

 Creek, above Forest Home; s. of Big Gully (D.) ; Howland Island; Marengo; and 

 elsewhere. , 



