232 THE FLORA. 
2 H. panicula’/tum. Panicled H. Stem leafy, widely panicled. Leaves fine-toothed. 
8 H. veno’sum. Rudin’s Plantain. Stem almost leafless, corymbed. Lvs. entire. 
4H. scabrum, Rough H. Headscorymbed. Plant stiff, rongh-hairy. 
5 H. longip’ilum. Long-haired H. Plant clothed with straight bristles 1’ long. W. 
6 H. Grono’vii. Gronovius’ H. Plant slender, quite hairy below. 
10. NAB’ALUS. Lion’s-foot. 
TInvolucre 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). Heads (8-12-flowered) in a corymb-like panicle....1, 2 
a Tall (2-6f. high). Heads in a long, raceme-like panicle....3, 4 
a Low (5-10’ high). Heads racemed. Found only on high mountains....5, 6 
1 N.al’ba. White Z. Pappus cinnamon-color. Leaves hastate, often lobed. 
2 NN, Fra’seri, Fraser’s Z. Pappus straw-color. Leaves deltoid, often cleft. 
8 WN. altis’simus. Zull Z. Heads 5-flowered. Leaves divided, or cleft, or entire. 
4.N. virga’tus, Mod Z. Heads 8-12-flowered. Lowest leaves pinnatifid. 
5 N.na/nus, Dwarf LZ. Outer involucre of short-ovate, close scales. 
6 N. Boot’tii, Boo’t’s Z Outer involuere of linear, loose scales. 
7 N. racemo’sus. Racemed LZ. Heads nodding, 9-12-flowered. W. M. 
8 NN. crepidin’eus. Crepis L. Heads nodding, 25-35-flowered. W.S. 
9 N.as’per. Rough L. Heads erect, 11-14-flowered. Panicle racemed. W. 
Orper LXXI. LOBELIACEAX. Lobeliads. 
Herbs with alternate leaves, scattered flowers, and often milky 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; 
ovary adherent to the calyx tube ; styles united into one; 
stigma fringed ; fruit a 2-8-celled, many-seeded capsule. 
LOBE'LIA. Cardinal-flower. Indian Tobacco. 
The two upper lobes of the irregular corolla are smaller than the three 
