DIVERSITY OF LIFE TOMPKINS COUNTY FLORA
Lactuca canadensisL.
Mitchell NYNYFA TCUSDA NY
accepted accepted accepted
Canada Lettuce

Asteraceae

CAYUGA FLORA (1926) NOTES: Dry gravelly banks by roadsides, and in similar situations, with little reference to the lime content of the soil ; common. July-Sept. Absent or rare in the heavier soils of the basin. N. S. to B. C, southw. to Ga., Ala., La., Ark., and Colo., including the Atlantic Coastal Plain. The form with the leaf bases not sagittate but tapering (forma angustipes Wiegand) occurs at Sheldrake, which is the type locality of this form. As var. latifolia: In situations similar to the preceding : frequent. Enfield Glen ; near Glenwood ; Renwick slope ; shore of Cayuga Lake, from Renwick to Myers ; and elsewhere. P. E. I. to Wis., southw. to Fla. and Okla. The form without the sagittate leaf-base is forma exauriculata Wiegand: Enfield Glen ; McKinneys ; Myers Point. As var. integrifolia: In situations similar to the preceding; frequent. Six Mile Creek; Cascadilla Creek; Fall Creek; Ithaca flats; Cayuga Heights; and elsewhere.P. E. I. to Wis., southw. to Ga., Ill., Okla., and Nebr. The form with the leaf base not auricled is forma angustata Wiegand: Six Mile Creek; L. V. R. R. yards, Ithaca. As var. obovata: In situations similar to the preceding ; infrequent or rare. Norton Landing (D. in C. U. Herb.) ; and probably elsewhere. Me. to Ind. and Nebr., southw. to N. J. and Okla. The form without leaf auricles is forma stenopoda Wiegand, not reported from the Cayuga Lake Basin.


BH SPECIMENS FOR Lactuca canadensis (this list may be incomplete)
 Ithaca, Inlet, lowlands, 1 Sep 1917, Bailey (BH 22238);
 Ithaca, Flowers yellow, 13 Aug 1918, Bailey (BH 22216);
 Ithaca, flowers yellow, 13 Aug 1918, Bailey (BH 22215);
 Connecticut Hill, near Ithaca, 13 Jul 1929, Bailey (BH 22237);
 Ithaca, 14 Sep 1927, Bailey (BH 22214);
 Ithaca, 14 Sep 1927, Bailey (BH 22230);
 Ithaca, 6-8 feet, 23 Aug 1918, Bailey (BH 22218);
 Ithaca, 6-8 feet, 23 Aug 1918, Bailey (BH 22219);
 Ithaca, 6-8 feet, 23 Aug 1918, Bailey (BH 22220);
 Ithaca, 6-8 feet, 23 Aug 1918, Bailey (BH 22221);
 Ithaca, 6-8 feet, 23 Sep 1918, Bailey (BH 22217);
 Ithaca, north of Lehigh Railroad station, 30 Aug 1931, Burnham & Clark 17638 (BH 22229);
 Ithaca, river banks, Sep 1875, Dudley (BH 22234);
 Ithaca, near Ithaca Gun Works, 7 Aug 1916, Dunlap (BH 22240);
 Lansing, Myers Point, sandy shore, 21 Aug 1918, Eames 11033 (BH 22233);
 Lansing, McKinneys, lake shore, 27 Aug 1919, Eames 13231 (BH 22232);
 Ithaca, Cayuga Heights, near lower state road, sandy field, 7 Jul 1915, Eames 5333 (BH 22242);
 Ithaca, Cayuga Heights, dry open woods, 7 Sep 1917, Eames 8996 (BH 22227);
 Ithaca, south side of Six Mile Creek, near road in woods, 23 Aug 1915, Eames & Thomas 5335 (BH 22228);
 Glenwood Road, two miles north of city, dry bank, 10 Aug 1919, Eames & Wiegand 13230 (BH 22243);
 Ithaca, north of Enfield Ravine, roadside, 19 Aug 1919, Eames & Wiegand 13232 (BH 22226);
 Newfield, west of station, roadside, 12 Aug 1917, Gershoy 8995 (BH 22245);
 Newfield, west of station, roadside, 12 Aug 1917, Gershoy 8995 (BH 22244);
 Ithaca, edge of Six Mile Creek, 1 Aug 1917, Gershoy & Cohn 8997 (BH 22239);
 Enfield, road to Enfield Ravine, edge of thicket, 11 Jul 1917, Gershoy & Wiegand 8993 (BH 22235);
 north of Ithaca, Lehigh Valley Railroad yards, damp rich railroad bank, 17 Aug 1916, Metcalf 7335; 7336 (BH 22231);
 Dryden, north of Freeville, bog, 11 Sep 1937, Murray (BH 22263);
 Ithaca, 4 Sep 1875, Rowlee (BH 22236);
 Ithaca, north of Cornell Heights and Cayuga Heights, dry open field, 15 Aug 1915, Eames & MacDaniels 5334 (BH 22223);
 Ithaca, Fall Creek Ravine, north shore of Beebe Lake, moist woods, 16 Aug 1915, Eames & Thomas 5336 (BH 22224);
 Lansing, north of Asbury, woodlot, 8 Aug 1917, Gershoy 8994 (BH 22222);
 Ithaca, wset of Cayuga Inlet, waste field, 4 Aug 1918, Randolph (BH 110074);

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