2S0 GEOIiOGIOAIi SURVEY OK CANADA. 



(JIoo/c. Arrt. PL) SpocinuMis from tho IvocUy iMoimdiiiis and Hrilisli 

 Colimiliia stH'in (o lu'loiii;- hero, as lliey havo (lie (•(iriiiciilatr ji]i|K>iula,i;(3 

 bolow fill' till ami <;lauccscenl loavrs. Soulli Kootunio I'.'iss, 4!)lh 

 parallel. {Dawsim,.) Crossini; ol' (he HlaeUwuler liivor, Noi'thern 

 Hrilish Coluinhia. {Macoun.) 



Var. lividum, Koeh. 



Turnxui-imt jialuMfc, DC. iMaeonn's Cat., No. 1091. 

 ].iinitttdim jiiilnMn ,'f^\\\\{h. Ilodk. Fi. I., 2!l(!. 



Ouler iuvt)liieral hiaits ovate to ovale-laiieoolate, all a])t lo 1)0 dark- 

 eoloreil in drying, »)bseurely or nottiL all eorniculato. Wcwtorn sunnnit 

 of the Nortli Kootanie Pass, Lat. 49" 30". (Dawsoti.) Cai-iboo Moun- 

 tains, B.C. (J^owley.) Departure Bay, Vancouver Island. (Meehan.) 

 Arctic Coast and islands, and the Aleutian Islands, in various forms. 

 (Cirai/.) Westcrnholine and below Bedevilled Beach, Lat. 76-78°. (Dr. 

 KiiiK'.) On both sides of Baffin's Bay and Davis 8ti-ait, and on Melville 

 Island, (('apt. Markham.) 



337. LACTUCA, Linn. (LETTUCE.) 



(1309.) L. Canadensis, Linn. AVild Lettuce. 



L. clongata, Muhl. Hook. ¥1 I., 29G. 

 L.longifolia, Michx. Fl. II. , 85. 



Eich soil in damp thickets. Quite common from Anticosti to thickets 

 in the western prairie region. 



(1310.) L. integrifolia, Bigel. 



L. clongata, var. integrifolia, Torr. & Gray Fl. II., 490. 



Leaves glabrous all undivided generally entire. Norton, N.B. (JTay.) 

 Dry sterile soil at Kingston, N.S. ; in tho vicinity of Belleville ; also 

 on hill sides, North Hastin.^-s, Ont. (Macoun.) On dry soil, 

 vicinity of Ottawa, Ont. (Fletcher.) Neighborhood of London, Ont. 

 (Burgess.) 



(1311.) L. hirsuta, Muhl. 



L. elongata, var. sanguinea, Terr. & Gray Fl. II., 49G. 



Leaves often ciliateon the margin and always hirsute on the midrib 

 below. Dry sandy woods east of Belleville, Ont., and abundant on 

 sterile soil, Rice Lake Plains. (Macoun.) Sandy fields, London, Ont. 

 (Burgess.) Vicinity of Ottawa, Ont. (Fletcher Fl. Olt.) 



