OF NORTH AMERICA. 
83 
tate, sessile, amplexicaule, flowers spieate or ra- 
cemose or paniculate ! &c, &c. 
947. Lactuca angulata R. smooth gigantic 
stem fistulose, leaves pinnatilicl broad, sinusses 
wide and angular, pinnules ovate angulate den- 
tate acute, base of nerves roughish, lower sub- 
petiolate angular ; flowers paniculate, pedicels 
inequal, bracts subulate — Fennsylv. to Ken- 
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 fxstular, naked above, all leaves pinnati- 
fld sessile, pinnules remote unequal lanceolate 
angular ; flowers raeemose lax few — on the 
8ea 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 different from last. 
949. Lactuca axillaris R. smooth, stem 
flstulose foliose, lower leaves ample sessile ovate 
lyrate Inhale, 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 spieate sessile. 
950. Lactuca ovatifolia R. nearly smooth, 
stem solid striate, leaves sessile ovatohlong 
equaly denticulate, middle nerve rough, lower 
attenuate at base, flowers paniculate, peduncles 
scaly— in New Jersey and Pennsyl. stem fus- 
cate 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 petiol ? flowers 
