XYRIS— ZOSTEKA. 



187 



XY'RIS. 3—1. (Junci.) [From a Greek word, 



signifying pointed.] 



curo/i}i"ia'ua, (yellow-eyed grass, E. y. 

 Au. 2i.) leaves linear, grass-like; stem or 

 scape two-edged ; head ovate, acute ; scales 

 obtuse. 9-18 i. 



brevifo'lin, (y. Au. 14- ■) leaves eubulate- 

 ensiform, short ; interior valves of the calyx 

 shorter than the exterior, somewhat gash- 

 toothed. 12 i. 



J7in"cea, (M. IS) leaves terete, hollow, 

 acute; scape terete, sheathed at the' base ; 

 calyx about as long as the roundish bracts ; 

 Head oval. 6-12 i. <S 



in"dic(j, (y. J. 11-) leaves long, grass-like, 

 tortuous ; scape tortuous ; heads globose ; 

 scales nearly round, obtuse. S. 



Jimbriu'ta, (feathered xyris, J. IX) heads 

 lax-irabricate ; calyx much long(ir than the 

 bracts, fimbriate; leaves long, sword-shaped. 

 2 f. S. 

 YUCCA. 6—1. (Liliacea.) [From Juca, tiie 



Indian name. iS'.] 



JUamento' sa, (silk-gras.s. w. Au. 2i-) 

 Btcmless ; leaves lanceolate, broad, entire, 

 filamentose on the margin ; stigmas re- 

 curved, spreading. 2-5 f. 



glorio'sa, [v/. Au. 11.) caulescent, branch- 

 ing ; leaves broad-lanceolate, plaited, entire ; 

 petals lanceolate. 2-4 f. 



alaifo'lia, leaves lance-liuear, with callous 

 creuatures, rigid. 10-12 f. 

 ZA'MIA. 20—12. (Conifcrece.) [From zemja, 



damage or loss, in allusion to the (act tliat 



tlie staminate ameiits pj-oduce no seed.] 



■inffi^rifo'lia, (^.) frond pinnate; leafets 

 lani^eoiate, roundish-obtuse, attenuate at 

 base, minutely sen-ate toward the apex> 

 stipe glabrous, somewhat 4-coniered. k?. 



spira'lis, flowers dioecious ; leaves rigid, 

 coriaceous, erect ; nut oblong, erect, scaly, 

 very hard. A native of New South 

 Wales. 

 ZANNICHEL"LIA. 19—1. (Naides.) 



palus"tris, anthers 4-celIed ; stigmas en- 

 tire ; pericarps toothed on the back ; stem 

 long, filiform ; flo\vers small, axillary. Horn 

 poud-weed. Ditches. 



inlervie'dia, (false poud-weed, Ju. %.) 

 anther 2-celled ; stigmas dentate-crenate ; 

 seed smooth, entire on the back ; stem fili- 

 form; leaves entire. Salt-marsh ditches. 

 ZAPA'NIA. 13—2. iScrophuhna.) 



nodijlo'ra, (b-w. Ju. 2^.) leaves ovate 

 wedge-form, serrate above ; spikes solitary, 

 in long filiibrm peduncles, forming conical 

 heads ; stem heibaceous, creeping, 6-8 

 inches long, procumbent. 



lanceola'ta, leaves linear-lanceolate ; 

 spikes solitary. Banks of stream.^. 



ZE'A. 19—3. (GraminecE.) [An ancient Greek 



name.] 



rruiT/s, (Indian-corn, yg. Ju. 0.) leaves 

 lance-linear, entire, keeled, (b*. 

 ZIGADE'NUS. 6—3. (Junci.) 



gldberri'mua, (w. J. 21.) scape le-ify , 

 bracts ovate, acuminate; petals acumijiate, 

 leaves long, recurved, channelled. 2-4 f. 



eV'egans, (w. J. 2i.) scape nearly naked- 

 bracts linear ; petals ovate, acute. S. 



ZIN"NIA. 17—2. {Corymhifcrcc.) 



viola'cea, (rp. Ju.) leaves ovate-acute, 

 sessile, sub-crenate ; chaff imbricate-seiTate. 



eV'egans, (p. J. 0.) heads stalked ; leaves 

 amplexicaul, cordate, ovate, sessile, oppo- 

 site ; stem hairy ; scales serrate. 2 f 

 Mexico. 



mullijlo'ra, (r. S. 0.) flowers peduncled-, 

 leaves opposite, sub-petioled, lance-ovate. 

 S. 

 ZIZA'NIA. 19—6. (Graminem.) 



aquaV'ica, (wild rice, Au. 11) panicle 

 pyramidal, divaricate and sterile at the 

 Ijase, spiked and fertile above ; pedicels 

 clavate ; awns long ; seed linear. In vvater. 



milia'ccn, (Au. 2^.) panicle effuse, pyra- 

 midal ; glumes short-awned ; staminate and 

 pistillate flowers intermingled ; style 1 , 

 seed ovate, smooth ; leaves glaucous. 6-10 f. 

 In water. 

 ZrZIA. 5—2. (UmheUifera;.) 



corda'ta, (y. J. IX) radical leaves undivi- 

 ded, cordate, crenate, petiolate, cauline one3 

 sub-sessile, ternate ; segments petiolate, 

 ovate, cordate, serrate ; partial involucre 

 1-leaved. 12-18 i. Fruit black. Canada 

 to Floi-ida. 



au'rea, (golden alexanders, y. J. 2^.) 

 leaves biteniate, .shining; leafets lance- 

 oval ; umbels with short peduncles. 1-2 f. 



%ntcgerri'ma, (y. J. 2^.) very glabrous; 

 leaves^ biternate, sub-glaucou.'?, lower onea 

 thrice ternate, upper ones twice ; leafets 

 oblique, oval, entire ; umbels with elonga- 

 ted peduncles. 12-18 i. Mountains. 

 ZrZIPHUS. 5-1. {Rhamni.) 



vohi'hik.'i, (g-y. Ju. H) unarmed; leaves 

 ovate, ribbed, entire ; umbels axillaiy, ped 

 uncled ; stem twining. ^5?. 

 ZOR"NIA. 10—10. {Le^uminosm.) 



tetrnphyV'la, (y. Ju. li) leaves digitate 

 leafets 4, lanceolate, glabrous: spikes axil- 

 lary, peduncled ; flowers alternate, 2-bract- 

 ed ; bracts roundish. <S. ^ 



ZOS"TERA. 19—1. (Naxdcs.) [From so.^tcr, 



a girdle.] 



mari'na, (sea-eel grass, Au. 2^.) leaves 

 entire ; stem terete ; flowers very small 

 leaves long. In salt water. 



