NAIDUS— NICOTIANA. 



131 



huwered ; nectary bell-form, short ; leaves 

 eaoulate. Ex. 



poeficns, (poet's narcissus, 2^.) spatha 1- 

 flowered ; nectary wheel-form, very short, 

 Bcarious, crenulate ; leaves inflexed at the 

 margin. Ex. 

 NAR"DUS. 3—1. (CyperpideiB.) iFiom tiardos, 



spikenard, a term applied to aromatic 



grasses.] 



s-tric"ta, (mat grass, 14..) spike setaceous, 

 straight; flowers 1 -sided. 



NARTHE'CIUM 6—1. {Junca.) [From 



narthex, fennel.] 



amenca'num, (y. Ju. 1|) racemes lax, 

 sometimes inten-uptedly spiked ; pedicels 

 with a setaceous bract below the llower, 

 and another embracing the base ; filaments 

 with very short hair; leaves narrow-eusi- 

 furm;flo\vers in a terminal spike or raceme ; 

 scape 1 f. Sandy swamps. 



NASTUR"TlTJ.\r. 14—2. (Crucifera.) 



ofiicina'le, (w. Ju. 2|-) leaves pinnate;! 

 leafets ovate, sub-cordate repand ; stem 

 decumbent ; petals longer than the calyx. 



pnhis''tre, (J. Au. 11.) leaves lyrate-pin- 

 natifid ; lobes confluent, unequally dentate, 

 smooth ; petals as long as the calyx ; siliques 

 short, turgidjroot ensiform. 1-2 f. 



ainphib"ium, (y. Ju. 2^.) leaves oblong- 

 lanceolate, pinnatifid or senate ; root fibrous; 

 petals longer than the calyx ; siliques ellip- 

 tical. 1-2 f. 



liis"pidum, stem tomentose-villose ; leaves 

 somewhat villose, runcinate-pinnatifid ; 

 lobes rather obtusely-toothed; siliques ovate, 

 tumid ; petals not quite as long as the ca- 

 lyx. 



sylres"tre, (y.) leaves pinnately divided ; 

 segments lanceolate, serrate, or incised ; 

 petals longer than the calyx ; siliques ob- 

 long, somewhat torulose ; style very short. 

 Introduced. 



tanncetifi/Vmm, (M. $ . y.) leaves pinnate- 

 ly divided ; segments .'^inuate-pinnatifid or 

 toothed ; siliques oblong-linear, nearly erect, 

 acute ; style .short. <S. 



sessilijio'rnm, (y.) leaves cuneate-obovate, 

 obtuse, repand-toothed or nearly entire ; 

 siliques sub-sessile, linear-oblong, obtuse, 

 tipped with the nearly sessile stigma. S. 



NEC'TRIS. 6—2. {Ranunculacem.) [From 

 Gr. nekton, swimming or floating.] 

 aquaf'ica, (g-w. M. 2^.) submersed 



leaves opposite, many-parted, capillaiy; 



floating ones alternate, elliptic, peltate ; 



flowers in lacemes. S. 



NEGUN"DO. 20-5. (Acerinea.) 



califo/'nicum, young leaves villose, 3- 

 foliate; leafets -3-lobed ; lobes incised or 

 toothed. California. *S, 



NELUM"B1UM. 12—12. (Ranunculace(e.) 



hdefum, (water chinquepin, sacred bean, 

 Indian lotus, w. y. Ja. 2^.) corolla many- 

 petalled ; anthers produced in a linear ap- 

 pendage of the extremity ; leaves peliate- 

 orbicular, very entire. Laken. Flowers 

 larger than those of any other plant in 

 North America, except one species of mag- 

 nolia. 

 veiita' pet" alum, (w. Ju. H.) leaves pel- 



tate, orbicular, entire ; caly.x 5-sepalled ■ 

 petals 5. S. 



NEMOPAN"THES. 4—4 (Rkamni.) [From 

 nemos, grove, and pantot (from pas), all, com- 

 mon in all groves.] 



canadeu"sis, (wild holly, Canadian holly, 

 g-y. M. ^).) leaves deciduous, ovate-oblong, 

 very entire, smooth, mucronate ; peduncles 

 sub-solitary, very long. 1 flowered ; fruit 

 obtusely quadrangular. Berries deep red. 

 3 6 f. 



NEMOPHl'LA. 5—1. (Boraginca:.) [From 

 nemos, a grove, ^^xdphileo, to love ; so called 

 from its habit.] 



pnnicula'ta, (b. M. $ .) very hairy ; radi- 

 cal leaves sub-piunatifid ; cauline ones an- 

 gularly lobed ; divisions of the calyx with 

 minute, oval appendages ; flowers on shoi-t 

 peduncles, somewhat paniculate. Moi.sC 

 woods. 



pkaccloi'des, (b. M. ^ .) succulent ; stem 

 3-sided ; leaves alternate, pinnatifid ; ped- 

 uncles very long, 1 -flowered, opposite the 

 leaves, and terminal. 



NE0T"T1A. 18—1. (OfchidecB.) [The name 



is from the Greek, and signifies bird's nest.] 



tort i' lis, (summer ladies' -tresses, w^. Ju. 

 21-) radical leaves linear; scape sheathed; 

 flowers spirally secund ; lip somewhat 3- 

 lobed ; middle lobe larger, crenulate. 12 i. 



gra'cilis, (ladies'-tre.sses, w. Ju.) radical 

 leaves ovate; scape sheathing; flowers in 

 a spiral row ; lip obovale, curled ; scape 

 8-12 incfhes, with a few sheathing leafets or 

 scales ; leaves on short petioles, sometimes 

 falling off" before the plant blossoms; flow- 

 ers in a tv/isted spike. Var. secu7i''da,s'p\kQ 

 scarcely twisted, flowers more slender. 

 Dry woods. 



ce/'nnn, (nodding ladies'-tresses, w. Au. 

 2.^.) leaves lanceolate, nerved ; flowers in 

 a dense spike, nodding , lip oblong, entire, 

 acute. 



odora'ta, (w.) stem leafy, glabrous ; leaves 

 lanceolate, acuminate ; radical ones very 

 long ; spike somewhat loose ; flowers re- 

 curved ; lip ovate, entire ; margin undu- 

 late, sub-fimbriate. S. 

 NEPE'TA. 13—1. (Labinta.) [Name is said 



to have been derived from Nepet, a town in 



Tuscany.] 



cata'Tin, (catmint, catncp,b-w. 2_C.) hoary- 

 pubescent ; flowers ui wdiorled spikes ; 

 leaves petioled, cordate, tooth-serrate. 



NICOTIA'NA. 5—1. (.sWanec;.) [From Ni- 



cot, who first introduced it into Europe.] 



taha'cum, (Virginiar' tobacco, w-r. Ju. 



0.) leaves lance-ovate, sessile, decurreut; 



flowers acute. Naturalized at the north. 



rus"tica, (common tobacco, g-y. Au. 0.) 

 viscid- pubescent; stem terete; leaves pe- 

 tioled, ovate, very entire ; tube of the corol- 

 la cylindrical, lonwr tlian the calyx; seg- 

 ments round, 12-18 i. Flowers in a termi- 

 nal panicle or raceme. lutrodured. 



paincnhi'la, (small-flowered tobacco, w-r. 

 Ju. ^.) leaves petioled, cordate, entire; 

 flowers on po.licel.s obtuse, clavate. Ex. 

 I quadrival'vis, (b-w. Ju. ©•) leaves ob- 

 long-ovate, petioled ; flowers scattered, sol- 

 itary, near the summit of the branches ; co 



