Order 70.— COMPOSITiE. 4I3 



scales herbaceous, glabrous, oblong and obtuse. — Sand hills abeufc ■Wilmington' N. 

 Car. Sts. numerous and much branched, 8 to 12' high. Scales leafy, green 

 pappus rather plumous than barbellate. Sept. (L. bellidifolia Mx.) ' ' 



4 C. oorymbdsus Torn. & Gr. St. single, stmd, erect, hairy ; Ivs. nearly smooth, 

 oblanceolate, obtuse, tapering to the base, the upper small, oblong, sessile ; hds. 

 about 20, 20-flowered, in a dense corymboug cyme ; scaies smooth, oblong-oval, 

 very obtuse, with a Iroad, scarious margin. — Swamp margins, N. Car. to Fla. 

 St. about 3f high. Pis. pale purple. Sept., Oct. (L. coiymbosa Nutt.) 



7. LIA^TRIS, L. (Gr. At, an emphatic prefix, arpug, invulnerable ; 

 used as a vulnerary.) Heads fevf to many (5 to 60)-flowered ; flowers 

 all ^ , tubular ; involucre oblong, imbricate ; receptacle naked ; pappus 

 of CO capillary bristles, mostly plumous ; acbenia tapering to the slen- 

 der base, lO-striate ; styles much exserted. — If. Herbs with simple, erect 

 stems, alternate, entire Ivs., and handsome rose-purple fls. in spicate, 

 racemed, or paniculate hds., blooming from Aug. to Nov. 



§ Heads in n corymb or thyrse-like panicle. Eoot fibrous Nos. 1 2 



§ Heads in a spike or a simple r.aceme. Root a roundish tuber (a). ' 



a Scales of the involucre colored and petaloid at their lengthened ends No. 3 



a Scales not petaloid, green or slightly tinged at the end (b). 



b Pappus evidently plumous. Corollas (13 to 60) hairy within Wos. 4, 5 



b Pappus evidently plumous. Corollas ,(3 to 5) smooth within Nos! G, 7 



b Pappus only barbellate (smooth to the naked eye) (o). 



Heads 3 to 7-flowered, — in one-sided spikes or racemes Nos. 8, 9 



—in a regular spike, raceme (or panicle) Nos. 10, U 



C Heads 20 to 40-flowered, roundish, with rounded scales No. 13 



Heads T to 15-flowered.— Scales all similar, obtuse Nos. 1.3, 14 



— Scales all, or the inner only acute Nos. 15, 16 



1 L. odoratissima Wiild. Vanilla-plant. Debr's-tongue. Glabrous; rt.- 

 Ivs. obovate-spatulate, obtuse, 5 to 7-veined, tapering to the base, cauline oblong, 

 clasping; hds. about 8-flowered, in many cymes, constituting a large, loose 

 corymb; scales all obtuse; &. smoothish. — Pine barrens (Ta. ?) to Pla. and La., 

 abundant. Sts. 1 to 3f high. Corymbs leafless. Fls. bright purple. Sept., Oct. 

 — The fleshy leaves exhale a rich fragrance (compared to Vanilla) even for years 

 after they are dry, and are therefore by the southern planters largely mixed with 

 then: cured tobacco, to unpart its fragrance to that nauseous weed. 



2 L. paniculdta Willd. St. simple, virgate, viscid-tomentous ; rt.-lvs. spatulate- 

 , lanceolate, acute, tapering to a petiole, cauline small, appressed, lanceolate-acu- 

 minate ; hds. about 5-flowered, in an ohlong, dense, thyrsoid panicle. — Damp pine 

 barrens, Ga., Fla. St. 2 to 3f high. Scales few, all obtuse. Fls. pale purple or 

 white. Sept., Oct. 



3 L. ^legans WiUd. Villous-canescent above ; Ivs. glabrous, the radical oblan- 

 ceolate, 3 to 5-veined, cauline linear, the upper bract-like, spreading ; spiire or 

 raceme dense ; hds. oblong-oylindrical, 4 to 5-flowered ; scales lance-linear, pro- 

 longed into a colored, petaloid appendage longer than the flowers ; pappus evi- 

 dently plumous. — ^A remarkable species, in pine barrens, Va. to Fla. and Tex. 

 St. 3 or 4f high, ending in a spike 6 to 16' long. The purple appendaged scales 

 more showy than the florets. Aug., Sept. 



4 Ii. squarrosa 'Willd. Blazing Star. Smooth or scabrous-pubescent- Ivs. 

 linear, lower ones attenuated at base ; rac. flexuous, leafy ; hds. few 20 to 40- 

 flowered, sessile or nearly so; invol. ovate-cylindric ; scales large, squarrom- 

 spreading, outer larger, leafy, inner mucronate-acuminate, scarcely colored- fls. 

 numerous ; pappus plumous.. — A splendid plant, native N. Y. (Eaton) Perm, to 

 Fla. and W. States. Sts. 2 to 3f high, thickly beset with long, linear leaves. 

 Hds. 5 to 20, with large, briUiant purple florets. Aug. f It varies with the 

 heads only 12 to 15-flowered (Georgia, Feay), smooth or hairy, Sea. 



5 L. cylindraoea Mx. St. low, slender, and very leafy, smooth and somewhat 

 hirsute, Ivs. rigid, linear, mostly 1 -veined; hds. few, sessile or pedicellate, cylin- 

 drical, 15 to 20-flower6d; scales short, ciliate, close, rovnded or oTitme, andabrapWy 

 mucronate atapex; pappus plumous. — Prairies and barrens, Mich, to Iowa (Cou- 

 eeDs) and Mo. St. 6 to 18' high. Lvs. 2 to 6' by 2 to 4" Heads 1' lona 



