274 Karl M. Wiegand and Arthur J. Eames 



6. T. agrarium L. Yellow or Hop Clover. 



Fields and roadsides, in dry gravelly, mostly neutral or acid, soils ; frequent and 

 widely distributed in the proper soils. June-Aug. 



Newf. to w. Ont. and Iowa, southw. to Ga. ; common along the coast. Natural- 

 ized from Eu. 



7. T. procumbens L. Low Hop Clover. 



In situations similar to the preceding, more often in pastures, lawns, or other 

 places where the grass is short; scarce. July-Aug. 



C. U. campus, 1882 (£>.), also 1914; cemetery, University Ave. (£>.!) ; pasture n. 

 •of Glen Pond (D.) ; end of footbridge, Cornell Heights; Cayuga Heights; near 

 Taughannock Gorge; Howland Point. 



N. S. to Wash., southw. to Ga. and Miss. Naturalized from Eu. 



8. T. dubium Sibth. Little Hop Clover. 



Dry gravelly or sandy fields and roadsides ; rare. June-July. 



Lawn, Roberts Hall, C. U. campus, 1925 ; e. side of Highland Ave., s. of Pleasant 

 Grove Brook (a large patch in 1914 but now probably exterminated by building 

 operations) and n. of same brook, 1923; near Taughannock Hotel, 1907; lawn at 

 Interlaken, 1923. 



Mass. to Va. and Tenn., and locally to Ga., Ark., and Miss. Naturalized from 

 Eu. 



7. Melilotus (Tourn.) Mill. 



a. Legume reticulate-alveolate or almost smooth. 



b. Wings shorter than the standard, equaling the keel ; flowers white. 3-5 mm. 

 long, not fragrant; fruit glabrous, 2.3-3.5 mm. long, oval, mostly obtuse, the 

 upper suture not carinate; seeds orbicular, smooth, scarcely or not at all 

 emarginate. 1. M. alba 



b. Wings and standard equal, often longer than the keel ; flowers yellow, 5-6 mm. 

 long, fragrant; fruit strigose, 4.5-5.5 mm. long, ovate-oval, acuminate, 

 gibbous, the upper suture carinate; seeds oval, punctate, emarginate. 



2. M. altissima 



a. Legume with strong transverse ridges, only slightly netted, glabrous, 2.5-3.5 mm. 



long, ellipsoid-oval, mucronulate, the upper suture not carinate ; seeds ovoid, 



smooth, not emarginate ; flowers yellow, 5-6 mm. long ; wings shorter than 



the standard but longer than the keel. 3. M. officinalis 



1. M. alba Desr. White Sweet Clover. White Melilot. 



A weed on dry gravelly roadsides, in waste places, on the gravel bars of streams 

 and lake shores, and on shale talus, rarely on clay soils; very common. June-Oct. 

 Widely naturalized in N. A. Native of Eurasia. 



2. M. altissima Thuill. (M. officinalis, chiefly, of Cayuga Fl.) Yellow Sweet 



Clover. Yellow Melilot. 

 A weed in heavy soils ; becoming common. June-Oct. 



Near athletic field, C. U. campus; n. side of Beebe Lake; Cayuga Heights Road, 

 abundant ; railroad embankment e. of McLean ; and elsewhere. 

 Naturalized about the eastern seaports and occasionally inland. Native of Eu. 



3. M. officinalis (L.) Lam. (M. officinalis, in part, of Cayuga Fl.) Yellow 



Sweet Clover. Yellow Melilot. 

 A weed in fields and by roadsides, in rich soil ; apparently rare. June-July. 

 S. of athletic field, C. U. campus, 1913 (E. L. Palmer) ; Renwick, 1920 ' {A. R. 

 Bechtel & W. C. Muenscher) . 

 Widely naturalized in N. A. Native of Eurasia. 



