HYDRASTIS— HYPOXIS.- 



113 



sHglitly cordate at base, acuminate, coarse- 

 ly toothed, glabrous underneath ; cymes 

 generally radiate. 



(jitercifo'lia, (w-r. M. J.) leaves oblong, 

 einuate and lobed, dentate, tomentose un- 

 derneath ; cymes radiate, paniculate. 4-5 f. 



nYDRAr."TIS. 1-2— 12. (Ranunculucccc.) [From 



udor, water.] 



canadeu"sis, (yellow pucoon, w-r. A p. 

 H-) stem with two opposite leaves above ; 

 leaves petioled, emarginate at the base, 

 palmate, serrate, gashed ; peduncle termi- 

 nal, solitary, 1-flowered ; roots yellow. 

 Used by the Indians as a dye. 

 HY'DROCIIA'RIS. 20—9. 'Jlt/drocharides.) 



[From udor, water, and chaiis, grace, Uiis 



little plant being considered as ornamental 



to placid waters.] 



spong/o'sa, monoDcious, leaves floating, 

 round, cordate, reticulate underneath, with 

 vesicles at ba.se. 

 ilYDROCHLO'A. 19—6. (Grayninea:.) [From 



udor, water, and e'laia. oil, because the leaves 



have a very oily appearance.] 



fiuitnns. (Ju. 2^.) floating in water, culm 

 long, slender, branching ; leaves linear, flat; 

 spike solitary, axillary, setaceous ; about 

 4-flowered. 

 HYDROCOT"YLE. 5—2. (Umbelliferce.) [From 



udor, water, kotule, a cavity.] 



umbella'ta, (w. M. 2-f.) leaves peltate, 

 crenate, emarginate at base ; umbels many- 

 flowered, on long peduncles. 



vulga'ris, (g-w. J. 24^.) leaves prbicular, 



!)eltate, slightly cr«nate ; scape interrupted- 

 y spiked, few-flowered. 



ranunculoi'des, (Ju. 21-) creeping; glab- 

 rous; leaves orbicular-reniform, somewhat 

 5-lobed ; lobes obtuse, crfinate, the middle 

 one smaller and more distinct ; umbels sub- 

 capitate, few-flowered ; pedunculate, 5 to 

 10-flowered. 



america' na, root tuberous ; stem filiform, 

 with creeping suckers ; leaves reniform, 

 slightly 7-lobed, crenate ; umbels 4-G flow- 

 ered, axillary ; petals greenish-white. Wet 

 places. 



iiUcrrup"ta, stem creeping at the joints ; 

 leaves peltate; flowers pinnate, white, in 

 emaU umbels, much shorter than the petioles. 

 Marsh penny- wort. 



HYDRO'LEA. 5—2. {ConvolvuU.) [From 



udor. water, elaia. oil.] 



quadrwaVvis, (b. Ju. li.) spinosc, pilose ; 

 leaves long-lanceolate ; flowers nearly ses- 

 sile, axiUary. 



coiymho'sa, without spines, flowers ter- 

 minal. 



spino'sa, leaves lanceolate, hirsute ; flow- 

 ers terminal. S. 



HYDROPEL"TIS. 12-12. (RanunculacecE.) 

 [From udor, water, pcUe, a shield.] 

 pnrpn'rca, (water-shield, p. Avl.IX-) leaves 

 peltate, tinged with purple ; peduncles .sol- 

 itary, 1-flowered. Whole plant covered 

 with a viscid gelatine ; stem long, floating. 



IIYI)ROrHYL"LUM. 5-1. (Boraginca.) 



[From udor, water, phiyllum, a leaf.] 



virgbii'cvin, (water leaf, w. J. 2^.) smooth- 



ish ; leaves pinnatilid and pinnate ; scf, 



meutfl with deep serratures; cmsters ot 



flowers crowded; peduncles larger than 

 the petioles. 18 i. 



caiutdeiif'se, somewhat hairy; leaves 

 large, about .5-7-lobed ; flowers blue and 

 white, in clusters. 



linca'rc. (Ap. 24^.) pilose; leaves linear; 

 racemes elongated. S. 



HYOSCYA'MUS. 5—1. (SoZana.) [From »w, 



a swine, and kuamos, a bean, because the 

 plant is unsightly.] 



ni'ger, (henbane, y-p. Ju. $ .) leaves 

 cla.sping, sinuate ; flowers veiny, sessile. 

 Introduced. 

 IIYPER"1CUM. 12-5. {Hypcricm) [From 



uper, over, eiknn. evil spirits, because it was 



thought to have power over such.] 



coryiabo'sum, (y. Ju. 14..) erect» glabrous 

 darkly-punctate ; stem terete, branching 

 leaves clasping, oblong-oyal, obtuse ; cor 

 ymbs terminal, brachiiite, dcnsc-llowered 

 divisions of the calyx lanceolate, acute 

 18-24 i. 



parvijlo'rnm, (y. Ju. Z/.) erect, small, 

 glabrous; stem dlcliotomous-ramo.se, some- 

 what 4-sided ; leaves ovate oblong, sub- 

 cordate, obtuse, nerved, se.=5sile ; panicles 

 terminal, dichotomouscorymbed ; petals 

 shorter than the lanceolate calyx. 6 12 i. 



perforn'tum, (y. J. IX-) erect, branching; 

 stem 2-edged ; leaves oblong, obtuse, trans- 

 parently punctate ; panicle terminal, bra- 

 chiate, leafy ; petals twice as long as llie 

 acute, lanceolate calyx; 3 styles. St. John's 

 wort. 



virgi)i"icum, (p. Au. 2^.) flowers with 9- 

 12-stamen8, di-stinctly arranged in 3 parcels, 

 and separated by nectaries ; 3 styles ; leaves 

 oval, obtuse, clasping ; stem compressed. 

 1-2 f. 



ascyroi'des, smooth ; stem square, winged 

 at the base ; leaves sessile, acute ; styles 

 free, as long as the .stamens; flowers and 

 leaves large ; capsules nearly as Iwrge as 

 nutmegs, yellow. River banks. 



puncla'tum, stem terete ; leaves sub- 

 cla.'sping ; flowers in dense corymbs ; .styles 

 3, longer than tl«2 stamens. Whole plant 

 dotted with black. 



canaden"sic, erect, small, fc\v-fiowered; 

 stem 4-sided, dichotomous above ; leaves 

 ses.sile, linear ; capsules red. 9 19 i. 



kalmia'num, (laurel-leaved hypericum,) 

 shrubby, veiy branching corymbs terminal. 

 3-4 f. Cultivated as ornamental. 



proHfi"cuvi, leaves more narro^v than the 

 preceding; flowers smaUer, numerous. 

 Cultivated. 



IIYP0PEL"T1S. 21—1. (Filices.) [From 



upo, under, and pcltc, a shield] 



obtu'nd, (An. li.) fronds 8-14 inches, high, 

 bi-pinnate ; divisionssub-remote ; segmepta 

 oblong, the lower ones crenalc-dentate ; 

 rachis pubescent above. Rocky woods. 

 IIYPOX"IS. 6-1. (Narcissi.) 



ercc"tn, (.«tar-grass, y. Ju. 2i.) pilose; 

 scape 2-3-flowered : leaves lance-linear ; 

 divisions of the corolla lance-oblong. Var 

 gramin"cn,\\as. longer and narrower leaves ; 

 more flowers, longer lance linear divisions 

 to the corolla, and altogether a moregras-sy 

 appearance. 



