Okdek 71.— LOBELIADS. 243 



2 H. prinicula^tum. Paniclfd 11. Stem leafy, ^vidcly panicled. Leaves fitie-toothed, 



3 H. veno'sum. lioh'ni's Plantain. Stem almost leafless, corymbed. Lvs. entire. 



4 H. scabrum. Rough II. Heads corymbed. Plant stifl^', rough-hairy. 



5 H, longip'ilum. Long-haired H. Plant clothed witii straight bristles 1' long. W 



6 H. Grono'vii. Gronovius' H. Plant slender, quite hairy below. 



10. ISTAB'ALUS. Lion's-foot. 



Involucre cylindrical, double, the inner of many linear scales in one 

 row, the outer of a few short scales at base. Receptacle naked. Achenia 

 smooth, striate, not beaked, crowned with a copious, straw-colored or 

 brownish hair-like pappus. — Erect herbs, with a thick, tuberous, bit- 

 ter root. Heads 5-18-flowered, white or straw-colored, often purplish. 

 Aug -Oct. 



* Heads glabrous, pendulous. Leaves multiform in the same plant a 



* Heads hairy, erect or nodding. Leaves reniform, undivided 7-9 



a Tall (2-4f. high). He?,ds (8-12-flo\vered) in a corymb-like panicle 1, 2 



a Tall (2-6f. higii). Heads in a long, raceme-like panicle 3, 4 



a Low (5-10^ liigh)- Heads racemed. Found only on high mountains 5, 6 



1 N. al'ba. White L. Pappus cinnamon-color. Leaves hastate, often lobed. 



2 N. Fra'seri. Fraser^s L. Pappus straw-color. Leaves deltoid, often cleft. 



8 N. altis'simus. Tall L. Heads 5-flowered. Leaves divided, or cleft, or entire. 

 4 N. virga'tus. Eod L. Heads 8-12-flowered. Lowest leaves pinnatifid. 



5 N. na'nus. Dwarf L. Outer involucre of short-ovate, close scales. 



6 N. Boot'tii. Bootfs L Outer involucre of linear, loose scales. 



7 N. racemo'sus. Raceimd L. Heads nodding, 9-12-flowered. W. M. 



8 N. crepidin'eus. Grepis L. Heads nodding, 25-35-flowered. W. S. 



9 N. as'per. Bough L. Heads erect, 11-14-flowered. Panicle racemed. W. 



Order LXXI. LOBELIACEJE. Lobeliads. 



Herls with alternate leaves, scattered ^(??<)ers, and often m\Wj juice ; 

 calyx superior ; corolla irregular, 5-lobed, tube split down to the base ; 

 stamens 5, united into a tube both by the filaments and anthers ; 

 oxarij adherent to the calyx tube ; styles united into one ; 

 gtigma fringed ; fruit a 2-^-celled, many-seeded capsule. 



LOBE'LIA. Cardinal-flower. Indian Tobacco. 



The two upper lobes of the irregular corolla are smaller than the three 



