NELUMBIUM-NUl'TALLIA. 
119 
NELUMBIUM. 12—13. (RanuncuIacefB.') 
hite'um, (water chinquepin, sacred bean, w y. Ju. %.) corolla many-petalled; 
anthers produced in a linear appendage of the extremity ; leaves peltate, 
orbicular, very entire. Lakes. Flowers larger than those of any other 
plant in North America, except one species of magnolia. 
NEMOMPHILA. 5—1. (Boraginea.) [From wemos, a grove, and jiAj'Zeo, to love ; so called from 
its habit.] 
panicuWta, (b. M. J*.) very hairy ; radical leaves sub-pinnatifid ; cauline 
ones angularly lobed ; divisions of the calyx with minute, oval appen- 
dages ; flowers on short peduncles, somewhat paniculate. Moist woods. 
phacelo^ides, (b. M. J^.) succulent; stem 3-sided; leaves alternate, pinnatifid ; 
peduncles very long, 1-flowered, opposite the leaves, and terminal. 
NEOTTIA. 18—1. iOrchidecB.) [The name is from tlie Greek, and signifies bird's nest.] 
t-mii'lis, (summer ladies'-tresses, w. Ju. %.) radical leaves linear ; scape 
sheathed ; flowers spirally secund ; lip somewhat 3-lobed ; middle lobe 
larger, crenulate. 12 i. 
graci'lis, (ladies'-tresses, w. Ju.) radical leaves ovate ; scape sheathing ; flow- 
ers in a spiral row; lip obovate, curled; scape 8-12 inches, with a few 
sheathing leafets or scales ; leaves on short petioles, sometimes falling off" 
before the plant blossoms ; flowers in a twisted spike. Var. secunda, spike 
scarcely twisted, flowers more slender. Dry woods. 
cer^'nua, (nodding ladies'-tresses, w. Au. %.) leaves lanceolate, nerved; flow- 
ers in a dense spike, nodding ; lip oblong, entire, acate. 
NEPETA. 13 — 1. {Labiatcn.) [Name is said to have been derived from Nepet, a tovpn in 
Tuscany.] 
cata'ria, (catmint, catnep, b-w. %.) hoary-pubescent; flowers in whorled 
spikes ; leaves petioled, cordate, tooth-serrate, 
NICOTIANA. 5—1. (Solanece.) [From Nicot, vsrho first introduced it into Europe.] 
taba'cum, (Virginian tobacco, w-r. Ju. ©.) leaves lance-ovate, sessile, deeur- 
rent ; flowers acute. Naturalized at the north. 
ru&'^tica, (common tobacco, g-y. Au. ©•) viscid-pubescent; stem terete; leaves 
petioled, ovate, very entire ; tube of the corolla cylindrical, longer than 
the calyx ; segments round, 12-18 i. Flowers in a terminal panicle or ra- 
ceme. Introduced. 
NIGELLA. 12 — 4. (RanunculacecB.) [From w>er, black, on account of its black seed.] 
damasce'na,, (fennel-flower, lady-in-the-green, b. M. ?^.) flowers surrounded 
with a leafy involucrum, composed of linear bracts. 
sati'va, (nutmeg-flower,) pistils 5 ; capsules muricate ; roundish leaves sub- 
pilose, pinnatifid. 
NOLINA. 6—3. (Junci.) 
georgia'na, (W. M. leaves long-linear, coriaceous, dry ; scape with small 
subulate scales neat the base ; panicle racemose, spreading. 2-3 f. 
NOSTOC. 21-4. (Alg(B.) 
commu'ne, on the earth ; frond ventricose, gelatinous. On the earth after a 
stonji ; an inch or two in extent ; olive green. 
NUPHAR. 12—1. {Papaveracecb.) [From the Greek, signifying vyater-lily.] 
kalmia'na, (water-lily, Kalm's water-lily, Ju. %.) leaves cordate, lobes near 
each other ; calyx 5-leaved ; stigma gashed, with 8-12 radiated lines ; 
leaves and flowers small. 
lute'a, (yellow water-lily, y. Ju. %.) calyx with 5 obtuse sepals ; stigma en- 
tire, 16-20 rayed; leaves cordate-oval; petals much smaller than the 
sepals, truncate. Water. 
adve'na, calyx with 6 sepals; petals numerous, small; petioles semi-cylin- 
drical, 
NUTTALLIA. 15—13. (MalvacecB.) [In honour of Thomas Nuttall.] 
digita'ta, (r. M. Ij..) glaucous ; lower leaves obsoletely digitate, sub-peltate j 
divisions linear; segments glabrous; upper leaves 3-parted and simple 
peduncles somewhat racemed, very long 3-4 f. 
31* 
