182 



VALLISNERIA— VERNONIA. 



fruit compressed, rhomboidal. 4-6 i. Mead- 

 ows. Md. 

 VALLISNE'rvlA.20— 2. {Hydrocharidcs.) [From 



Anthony Vallisneri.] 



spira'liti, (tape-grass, w. Au. 2^.) leaves 

 floating, linear, obtuse, serrulate at the sum- 

 mit, tapering at the base, radical ; peduncle 

 of the pistillate flower long ; of staminate 

 short, erect. Grows in still water. 



VERA'TRUM. 6—3. (Junci.) 



vir^'ide, (Indian poke, white hellebore, g. 

 J. y. 2i.) racemes paniculate ; bracts of the 

 branches oblong-lanceolate, partial ones 

 longer than the sub-pubescent peduncles; 

 leaves broad-ovate, plaited. 3-5 f. Mead- 

 ows and swamps. Abundant in the valleys 

 of the Green Mountains. 



angvstifo'Uum, (g-y. J. li) flowers dioe- 

 cious ; panicle .simple , petals linear ; leaves 

 very long, linear-keeled. Mountains. 



parvijio'rvm, (g. Ju.) leaves oval, lanceo- 

 late, flat, glabrous ; panicle slender, spread- 

 ing ; petals acute at each end, .staminifer- 

 ous. S. 



VERBAS"CUM. 5—1. {Solanem.) [From bar- 

 bascum, on account of its being bearded.] 

 tkap"sus, (mullein, y. J. ^ .) leaves decur- 

 rent, downy both sides; stem generally 

 simple, though sometimes branched above ; 

 flowers in a cylindric spike. 3-6 f. 



blatta'ria, (moth mullein, sleek mullein, 

 w-y. J. 2^.) leaves glabrous, tooth serrate; 

 lower ones oblong obovate ; upper ones 

 heart-ovate, clasping: pedicels 1-liowered, 

 in a terminal, panicled raceme. Ya.v.al"ba, 

 leaves toothed ; flowers white. Yav.lu'tea, 

 leaves doubly serrate ; flowers yellow. 2-3 f. 

 l7/ckni'iis, (y. J. ^ .) stem angular ; leaves 

 oblong, cuneate, white downy beneath ; 

 spikes lax, lateral and terminal. 



phc^nicum, [li.) a very handsome spe- 

 cies. 



VERBE'NA. 13—1. {Labiates.) From herbe'na, 

 a name of distinction for lierbs used in sa- 

 cred rites. The vervain in former times 

 was held sacred, and employed in celebra- 

 ting sacrificial riles. J 



hasta'ia, (vervain, simpler's joy, p-w. Ju. 

 ZX-) erect, tall; leaves lanceolate, acumin- 

 ate, ga.sh-serrate ; lower ones sometimes 

 gash-iiastate ; spikes Hnear, panicled, sub- 

 imbricate. Var. pinnat.ijl'da, has the leaves 

 gash-pinnatifid, coarsely toothed. Var. ob- 

 longifo'Ua, leaves lance oblong, deeply ser- 

 rate, acute ; spikes filiform, panicled. 2-5 f. 

 urticifo'lia, (nettle-leaf vervain, w. Ju. 

 2/.) erect, sub-pubescent; leaves oval, 

 acute, serrate, petioled; spikes filiform, 

 lOose, axillary, tenninal; flowers tetraud- 

 rous. 2-3 f. 



sjru'ria, (b. Au. ©.) stem decumbent, 

 branched, divaricate ; leaves laciniate, much 

 divided ; spikes filiform ; bracts exceeding 

 the calyx. 1-2 f. Sandy fields. 



angusUfo'Ua, (b. J. 2i-) erect, mo.stly 

 simple; leaves lance-linear, attenuate at the 

 base, remotely toothed, with elevated veins; 

 spikes filiform, solitary, axillary and termi- 

 nal. 



stnd'ta, (b. Ju. 2^.) stems rigidly erect; 

 leaves se-ssile, obovate serrate, sub lomca- 



tose, very hirsute ; spikes sti'aignt, imbi 

 cate, fascicled. Var. moV'lis, (p.) stem sirn 

 pie, terete, villose; leaves ovate, acuti.sh 

 unequally gash-toothed ; teeth acute, hir 

 Bute above, .soft villo.se beneath ; spike* 

 dense-flowered, terminal, somewhat in 

 threes. Perhaps a di.stinct species. S. 



panicula'ta, (p. Ju. 2X.) scabrous; leaves 

 lanceolate, coarsely serrate, undivided ; 

 spikes filiform, imbricate, corymb-panicled. 

 4-6 f S. 



bipin"natifi'da, (b. J. 2^.) hirsute ; leaves 

 3-cleft, bipinnatifid ; divisions iinear ; nuta 

 deeply punctate. IS. 



carolin"ia'na, (p. J. 2./.) scabrous; leaves 

 oblong-obovate, obtuse, unequally serrate, 

 tapering at base, sub-sessile ; spikes very 

 long, filiform ; flowers distinct. 2 f. S. 



melin"dres, (common scarlet verbena,) 

 stem prostrate. Introduced from S. Ameri 

 ca. 



Uaeedia'na, stem erect ; flowers crimson. 



!iabin"ii, stem prostrate ; flowers lilac ; 

 one variety has white flowers. Ex. 



sulpht'rca, stem prostrate; flowers yel 

 low. Ex. 

 VERBESI'NA. 17—2. {CorymhifercB.) _ 



siegesbeck"ia, (y. Au. li.) stem winged; 

 leaves opposite, ovate-lanceolate, acumin- 

 ate at each end, acutely seirate; coiymbs 

 brachiate ; branches irregularly many-flow- 

 ered at the summit; root creeping; stem 

 erect, 4-6 f., 4-\vinged ; ray-florets 3-tootu- 

 ed. Shady woods. Penn. to Car. Crown- 

 beard. 



virgin"ica, (w. Ju. 2_f.) stem narrow 

 winged ; leaves alternate, broad, lanceo- 

 late, sub-serrate ; corymb compound ; in- 

 volucrum oblong, pubescent, imbricate ; 

 ray-florets 3 or 4 ; seeds four-angled. 3-6 f, 



simia'ta, (w. Oc. 2^.) stem pubescent, 

 striate ; leaves alteraate, sessile, sinuate, 

 attenuate at base ; flowers corymbed ; in- 

 volucrum imbricate ; ray-florets 3-5. 4-6 f 

 S. 

 VERNO'NIA. 17—1. (CorymbifereB.) 



noveboracen'sis, (flat-top, p. Au. 2^.) leaves 

 numerous, lanceolate, scabrous, serrulate ; 

 corymbs fastigiate ; scales of the involucre 

 filitbrm at the summit ; flowers in a large 

 terminal corymb; .stem 4-6 f Branching 

 towards the top. Wet grounds. Can. to 

 Car. 



tomento'sa, (p. Au. li) stem tomentose 

 above ; leaves long, narrow, lanceolate, 

 acutely serrate, slightly scabrous above, 

 hoary tomentose beneath ; corymb fastigi- 

 ate ; scales of the involucram filiform at 

 the apex. 3-5 f. 



angustifo'lia, (p. Ju. 2^.) stem simple, 

 somewhat scabrous ; leaves numerous, long 

 linear, nearly entire ; corymb sub-umbelled, 

 scales of the in volucrum rigid, mucronate. 

 3 f. S. 



aUis"sima, (p. Au. 24!.) stem glabrous 

 leaves lanceolate, serrate, somewhat sca- 

 brous ; invoiucrum small, hemispheric ; 

 scales ovate, acute, ciliate, unawned, close- 

 ly appressed. Var. margnia'ta, (p.) leaves 

 narrovz-lanceolate, glabrous, very entire • 

 corymb fastigiate ; invoiucrum hemispheric- 



