132 



NIGELLA— CENOTHERA 



rolla fannel-fonn ; divisions oblong, acutish ; 

 capsule sub-globose, 4-valvcd. S. 



NIGEL"LA. 12—4. (Ranunculacca.) [From 

 niger, black, on account of its black seed.] 

 damasce an, (fennel-flower, lady-in-tlie- 

 green, b. M. @.) flowers surrounded ^vith 

 a leafy involucruni, composed of linear 

 bracts. 



sati'vn, (nutmeg-flower,) pistils 5 ; cap- 

 sules muricate ; roundish leaves sub-pilose, 

 pinnatifid. 



NOLI'NA. 6—3. {Junci.) 



georgia'na, (W. M. 2^.) leaves long-lin- 

 ear, coriaceous, dry; scape with small sub- 

 ulate scales near the base ; panicle race- 

 mose, spreading. 2-3 f. 

 NOS"TOC. 21—4. {AJgm.) 



commu'ne, on the earth ; frond ventricose, 

 gelatinous. On the earth after a storm ; an 

 inch or two in extent ; olive green. 



NU'PHAR. 12—1. (PapaveracecE.) [Fronn the 



Greek, signifying water-lily.] 



kahnia'yia, (water-lily, Kalm's water-lily, 

 Ju. li) 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. 14-.) ca- 

 lyx with 5 obtuse sepals ; stigma entire, 

 16-20 rayed ; leaves cordate-oval ; petals 

 much smaller than the sepals, truncate. 

 Water. 



adve'na, calyx with 6 sepals ; petals nu- 

 merous, small ; petioles semi-cylindrical. 



sagitt(Bf(/lia, (y. Ju. 14..) leaves long, cor- 

 date-sagittate, obtuse ', calyx 6-sepaIled ; 

 petals none ; anthers sub-sessile : stigma 

 entire. Water. S. 



NUTTAL"LIA. 15-12. {Malvacece.) [In honor 



of Thomas Nuttall.] 



digita"ta, (r. M. 2/.) glaucous ; lower 

 leaves obsoletely digitate, sub-peltate ; di- 

 visions linear ; segments glabrous ; upper 

 leaves 3-parted and simple ; peduncles 

 somewhat racemed, very long. Poppy- 

 like. 3-4 f. 

 NYMPH^'A. 12—1. (Papaveracecc.) [From 



numpha, water-nymph.] 



odora'ta, (pond-lily, w. Ju. 24^.) leaves 

 round-cordate, entire, sub-emargiuate ; lobes 

 spreading asunder, acuminate, obtuse ; pe- 

 tals equalling the 4-leaved calyx ; stigma 

 16-20-rayed ; flowers large, odorous. The 

 Egyptian lotus belongs to this genus. 

 NYS"SA. 20—5. {Mliagni.) 



muUiJl(/ra, (sour or black gum, y-g. M. 

 ^ .) leaves lanceolate, very entire, acute at 

 each end; the petiole margined, and mid- 

 rib villose ; fertile peduncles many-flower- 

 ed ; flowers in umbellate clusters ; drupe 

 nearly round, dark blue. Low woods. 

 30-50 f. 



bijlo'ra, (tupelo-tree, swamp horn-bean,) 

 leaves ovate-oblong, very entire, acute at 

 each end, smooth ; fertile peduncles 2-flow- 

 ered ; drupe oval, compressed. Swamps. 

 30-50 f. 



aquat!'ica, (M. '^.) leaves oblong-lanceo- 

 late, entire, acute at each end, glabrous ; 

 •"ruit bearing peduncles 2-flowered 



capita'ta, (M. ^ .\ leaves on short pet- 

 ioles, oblong-lanceolate and oval, nearly 

 entire, pubescent and somewhat hoary be- 

 neath ; staminate florets capitate ; pistillate 

 1-flowered. S. 



tomento'sa, (M.*^.) leaves on long pet 

 ioles, oblong, acuminate, acutely toothed, 

 tomentose beneath; fruit bearing peduncles 

 1-flowered. S. 



unijio'ra, (Ap. 14) leaves on long petioles, 

 oblong, acuminate, sparingly and angularly 

 toothed, slightly pubescent beneath, lower 

 ones sometimes cordate ; fruit bearing ped- 

 uncles 1-flowered. Swamps. S. 



OBOLA'RIA. 13—2. (Pedicular es.) 



virgin" ica, (penny-^vort, r. Ap. 14) stem 

 simple ; leaves oblong, truncate fleshy, 

 purple beneath ; flowers axillary, solitary 

 sessile. 3-4 i. 



OCY'MUM. 13—1. (Labiata:.) [From okus, 

 swift, on account of its rapid growth.] 

 basil"icum, (basil, @.) leaves ovate, glab- 

 rous ; calyx ciliate. 6-12 i. 



(ENAN"THE. 5—2. (Umbelliferecc.) 



sarmanto'sa, stem branching, weak, 

 somewhat climbing; leaves gash-bipinnate ; 

 segments ovate, dentate, terminal one some- 

 what 3-lobed ; umbels opposite the leaves, 

 many-rayed ; involucre ; fruit oblong; 

 style very long. 



Jilifor"mis, (w. Au. ^) leaves simple, 

 terete, jointed, acute; nut winged. Harper's 

 Ferry. 

 (ENO'THERA. 8—1. (Onagrce.) 



Copsrdes elongated, sessile. 



hien"nis, (scabish, tree-primrose, y. J. $ .) 

 stem villose, scabrous ; leaves lance-ovate, 

 flat-toothed ; flowers sub-spiked, sessile ; 

 stamens shorter than the corolla. 3-5 f. 



parvijlo'ra, (y. Ju. $ .) stem smooth, sub- 

 villose ; leaves lance-ovate, flat ; stamens 

 longer than the corolla. 



grandijio'ra, (y. Ju. $ .) stem nearly 

 smooth, branched; leaves ovate-lanceolate, 

 glabrous ; flowers axillary, sessila, large : 

 petals obcordate ; stamens declining, short- 

 er than the corolla. 2-3 f. Introduced. 



murica'ta, (y. Ju. $ .) stem purplish, mu- 

 ricate ; leaves lanceolate, flat ; stamens aa 

 long as the corolla. 1-2 f 



sinun'tn, (y. J. %.) stem difFiise, pubes- 

 cent; leaves oval-oblong, toothed and sinu- 

 ate ; flowers axillary, villose ; capsules 

 prismatic. Var. min"ima, stem low, sim- 

 ple, 1-flowered; leaves entire. 



C apsides obovate, clnvate, angular, mostly 

 pedicelled. 



fnttico'sa, (shrubby Oenothera, sun-drop 

 y. Ju. 2^.) pubescent; stem branching from 

 the base, divaricate ; leaves sessile, lanceo- 

 late, acute, slightly toothed, pilose ; flowers 

 in a terminal raceme; petals broad-obcor- 

 date. Shady woods. Stem 12-18 inches high, 

 purple. Var. amhig"ua, has smaller flowers. 



hyhri'da, stem erect, villose ; leaves pii- 

 bcf^ccnt on both sides, lanceolate, remotely 

 toothed, undulate ; capsules somewhat 

 spiked ; flowers pale yellow. 9-18 i 



