The Flora of the Cayuga Lake Basin 281 



b. Longest petioles 5-15 mm. long; flowers purple; calyx 7-9 mm. long. 



c. Leaflets linear to elliptic-lanceolate, 3-8.5 cm. long ; stem stout, usually 

 winged, 1.5-3 mm. in diam. (exclusive of wings) below the lowest pe- 

 duncle ; flowers 1.5-2.5 cm. long. 1. L. palustris 

 c. Leaflets elliptic to oval, 2-4 cm. long; stem slender, usually wingless, 0.7-1.5 

 mm. in diam. below the lowest peduncle; flowers 1-1.5 cm. long. 



la. L, palustris, 



var. myrtifolius 

 b. Longest petioles 20-30 mm. long ; flowers pale yellow ; calyx 9 mm. long ; leaflets 

 elliptic-oval. 2. L. ochroleucus 



a. Leaflets 2 ; flowers many, large and showy. 3. L. latifolius 



[L. venosus Muhl. 



"PGeneva" in Sartwell's Herb. (D.) ; "Cayuga L." in Thomas's Herb. (D.) ; not 

 seen since, and its occurrence in this flora doubtful. 



N. J. and Pa. to Sask., southw. to Ga., La., and Ark. ; rare or absent on the 

 Coastal Plain. 



The first locality is admittedly doubtful, and at the second station the plant may 

 have been cultivated in the Thomas garden.] 



1. L. palustris L. 



Borders of marshes in alluvial soil and on the shore of Cayuga Lake, apparently 

 in nearly neutral soils ; infrequent. July. 



Found only in the vicinity of Cayuga Lake and the marshes on the Ontario plain, 

 and possibly influenced by salts in the soil: s. w. corner of the lake (D.) ; lake 

 shore at Marions (D.) ; Bushy Point (D.) ; Salt Pond w. of Howland Island; Mon- 

 tezuma. 



Lower St. Lawrence River to Man. and Oreg., southw. to s. Me., Vt., cent. N. Y., 

 Ohio, and 111. Found also in Eurasia. 



la. L. palustris L., var. myrtifolius (Muhl.) Gray. 



In situations similar to the preceding ; infrequent. Tuly-Aug. 



In the Cayuga Lake Basin, found only near Cayuga Lake, and probably influenced 

 by salts in the soil: Renwick; near Marions (D.) ; near Tremans (D.) ; Myers 

 Point (D.) ; near Union Springs (D. !) ; Canoga Marshes; Montezuma Alarshes ; 



W. Que. to Wis. and Man. (?), southw. to n. N. J., Pa., N. C. (?), Tenn (?), 

 Ohio, and Ind. 



2. L. ochroleucus Hook. 



Dry hillsides and thickets, in nearly neutral stony clay soils ; frequent. May. 



N. of White Church; s. of Brookton ; Six Mile Creek; Fall Creek, especially 

 at Beebe Lake (£>.!) ; other ravines (D. !) ; Lake Ridge, common; n. of Sheldrake; 

 Paine Creek glen; Utt Point; n. of Levanna; ravines and woods of Cayuga Lake 

 shore (D. !) ; and elsewhere. 



W. Que. to Sask., southw. to n. N. J., Pa., the Great Lakes, Iowa, S. Dak., 

 Wyo., and B. C. (?). 



3. L. latifolius L. Perennial Pea. 



Roadsides and fence rows ; rare. Aug.-Oct. 



Near Forest Home, 1919 (A. R. Bechtel) ; bank of Fall Creek, Etna; e. branch 

 of Salmon Creek, toward North Lansing ; and probably elsewhere. 

 Escaped from cultivation. Native of Eu. 



