or NORTH AMERICA. 85J 



tate, sessile, arnplexicaiile,flowers spicate ot ra- 

 cemose or paniculate ! &c, &.c. 



947. Lac TUCA angulata R. smooth gigantic 

 stem fistulose, leaves pinnatifid broad, sinusses 

 wide and ani:;ular. pinnules ovate angulate den- 

 tate acute, base of nerves roughish, lower sub- 

 petiolate angular; flowers paniculate, pedicels 

 inequal, bracts subulate — Pennsylv. to l^en- 

 tucky Slc stem 5 to 8 feet high, very thick, 

 leaves ample thin pedal below, flowers very 

 numerous. 



948. Lactuca maritima R. smooth, stem 

 simple fistular, naked above, all leaves pinnati- 

 fid sessile, pinnules remote unequal lanceolate 

 angular ; flowers racemose lax few — on the 

 Sea Shores and Sea Islands from Long Island 

 to Virginia, stem bipedal purplish, leaves 3 or 

 4 inches long slender, radical and on base of 

 stem only, how diflerent from last. 



949. Lactuca axillaris R. smooth, stem 

 fistulose foliose, lower leaves ample sessile ovate 

 lyrate lobate, sinusses rounded entire, lobes 

 rounded dentate, upper leaves lanceolate entire 

 flowers in axillary spikes — Mts. Alleghanies, 

 stem bipedal fuscate. leaves 2 or 4 inches long, 

 flowers realy spicate sessile. 



950. Lactuca ova tifolia R. nearly smooth, 

 stem solid striate, leaves sessile ovatoblong 

 equaly denticulate, middle nerve rough, lower 

 attenuate at base, flowers paniculate, peduncles 

 scaly — in New Jersey and Pennsyl. stem fus- 

 eate 2 or 3 feet high, leaves 2 or 3 inches long, 

 veins reticulate. 



951. Lactuca pilosa R. stem fistular, base 

 pilose, naked above, leaves all sessile lanceolate 

 denticulate, beneath glaucous and subpilose. 

 lower elongate attenuate into a petioi, flow&r* 



