192 ORDER 70. COMPOSITE. 



2 H. seabrum MX. Leafy, rough-hirsute, glandular above ; Ivs. obovatc to elliptic 



subentire ; invol. scarcely imbricated ; fr. red. Hilly woods. 1 3f. lids. 9". Aug 



3 H. longipilnm Torr. Clothed with long, erect, shaggy hairs ; Ivs. lance-oblong, 



entire ; hds. glandular, 20-30-flwd. in a small naked panicle. W. 1 2f. July, Aug. 



4 H. Crouovii L. Hairy, paniculate, glandular at top ; Ivs. obovate to lance-oblong, 



slightly toothed, the cauline sessile, often few ; fr. 2030, narrowed above. Varies 

 with stems leafy or snbnaked ; pan. close or diffuse. Dry hills: com. 1 3f. Aug. + . 



5 H. veiiosum L. Scape or stem leafless, or with one leaf, paniculate, smooth ; Ivs. 



obovate, entire, nearly glabrous, with purple veins ; scales smooth ; fls. 20 ; fr. linear. 

 Woods, E. and W. 1 2f. Hds. on slender ped., broader (9'0 than in No. 4. Jl., Aug. 



6 H. paniculatum L. Slender, leafy, diffusely paniculate ; Ivs. lanceolate, glabrous ; 



pcd. very slender ; fls. 1020 ; fr. short-cylindric, black. Woods : com. 2 3f. Aug. 



107. CATANANCHE, L. Invol. imbricated, scarions. Recep. pale- 

 aceous. Pap. paleaceous, 5-lcavccl. Pales awned. @ Oriental herbs, with 

 alternate, lanceolate leaves. 



C. COCRULEA L. Lvs. villons, somewhat bipinnatifid at base ; invol. lower scales ovate, 

 mucronate. S.Europe. 2 3f. Heads on long peduncles. Blue. July + . 



108. NABALUS, Cass. DROP FLOWER. Invol. cylindric, of many 

 linear scales in one row, calyculate with a few short, appressecl scales at 

 base. Recep. naked. Pap. copious, capillary, brownish, 2-rowed, persist- 

 ent. Gyp. not beaked, smooth, striatc. U Erect, with a tuberous, bitter 

 root. Heads 5-18-flowered, not yellow, although often straw-colored. 



Heads pendulous, glabrous. Leaves variously lobedor shaped. . . (a) 



a Dwarf species (610' high) native of high mountains Nos. 1, 2 



a Tall (2 5f high). c Heads 5-6-flowered No. 3 



c Heads S-12-flowered. d Pappus tawny No. 4 



d Pappus straw-colored Nos. 5, 6 



Heads nodding or erect, hairy. Leaves mostly undivided.. . (b) 



b Heads about 12-flowered. Pappus straw-colo-r ... Nos. 7, 8 



b Heads about 25-flowcred. Pappus tawny or dusky No. 9 



1 N. Boottll DC. St. simple, dwarf; Ivs. hastate-cordate to lanceolate, mostly entire ; 



heads racemed ; flowers 1018, inner scales 1015. High mountains, N. July + . 



2 N. iiaims DC. Smooth, simple ; Ivs. deltoid-hastate and variously lobed, upper lan- 



ceolate, all petiolate ; hds. clnstercd-paniculate ; sc. 8, fls. 1012. White Mts. Aug. 



3 N. altissimus Hook. Smooth, strict, paniculate, tall, leafy; Ivs. petiolate, pal- 



mately 3-5-cleft, or lobed, varying to hastate, cordate, or even ovate, dentate ; hds. 6" 

 long, yellowish, forming a slender, leafy panicle; sc. 5. Woods, N. 3 5f. August. 



4 N. albus Hook. Lion's-foot. White Lettuce. Smooth, glaucous, corymb.-paniculatc ; 



Ivs. hastate-lobed to ovate, petiolate, the lobes or leaves obtuse ; heads 67", with 8 

 scales, 9 12 fls., and brown pappus. Moist woods. 2 4f. Purplish in spots. Aug. 

 ft. Scrpenttiria, Snake-root. Lvs. deeply 3-lobed, the middle lobe 3-parted. 



5 IV. Fraserl DC. Earth-gall. Smoothish, corymb.-paniculate ; Ivs. hastate or del- 



toid, rarely 5-7-lobed, on winged stalks, npper lanceolate. Varies with the leaves all 

 lanceolate and merely toothed. Hard soils, Conn, to Fla. 2-^lf. August. 

 C N. virgatus DC. Glaucous, simple, strict ; Ivs. sinuate-pinnatiful, narrow, the upper 

 toothed or entire ; panicle or raceme virgate. Sands. N. J. to Fla. 2 4f. Sept., Oct. 



7 N. racemosus Hook. Smooth (exc. the invol.), simple, slender; Ivs. lance-oval to 



lance-ovate, denticulate ; hds. suberect, spicate-paniculate. Swamps, N. J. to Iowa, 



andN. 2-4f. Flowers pale red. Varies with the lower leaves cut-pinnatifid. Sept. 



K N. aspcr T. & G. Rough-downy, simple, strict ; leaves oval-oblong to lance-oblong, 



dentate; hds. erect, fascicled in a spicatc panicle; fls. yellowish, W. 2 4f. Sept, 



