IRIS— JUGLANS 



115 



I'RIS. 3 — 1. {Irida.) [From iris, the rainbow. J 

 crhfa'ta, (b-y. Ap. 2^.) beai-ded ; beard 

 crested ; scape generally 1 -flowered, as 

 long as the leaves. 2-4 f. S. 



tri'veL"ala,(lS,. M. 21-) bearded ; stem te- 

 rete, longer limn tlie leaves ; rudiments of 

 the inner petals 3 toothed, middle tooth acu- 

 minate. 2 f. S. 



cnpre'a, (r-y.) beardless ; stem terete, 

 flexuons, equalling the leaves ; capsules 

 large, 6 angled. 3 f. S. 



ver"na, (b. M.) without beard or stem; 

 1 -flowered; leaves gi-ass-like ; tube very 

 long. On the earth. <Sf. 



pri!imat"ica, (b. y. J. 2/.) flowers beard- 

 less ; leaves linear ; stem round, many-flow^- 

 ered ; germs triangular, twice grooved on 

 the sides. 1-2 f. 



-plica' ta, (garden iris, p. w. M. If.) beard- 

 ed ; stem many-flowered, higher than the 

 leaves; petals undulate-plicate, erect ones 

 broadest. 18-24 i. Ex. 



pu'viila, (dwarf flower-de-h;ce, b. M. 2/.) 

 bearded ; scape 1-flowered; leaves ensiform, 

 glabrous ; tube of the corolla exsert ; petals 

 oblong, obtuse. 6-10 i. Ex. 



ochroleu'ca, (yello\v iris, y. M.) beardless ; 

 leaves ensifonn, depressed, striate ; scape 

 Bub-terete ; gemi 6-cornered. Ex. 



versic"oIor, (suake-lily, blue-flag, b. J. 11.) 

 leaves ensiform ; stem acute on one side ; 

 capsules oblong, 3-sided, with obtuse an- 

 gles. Var. sulca'ta,\\-meY petals longer than 

 the stigmas ; Qerm. with sulcate angles and 

 concave sides ; capsule oblong, ventricose ; 

 angles somewhat fun-owed. Var. commu- 

 nis, stem erect, flexuous ; leaves nan-ow- 

 ensiform ; inner petals a little shorter than 

 the stigmas ; angles of the genu not gi'ooved 

 when young, sides deep concave.; capsule 

 cylindric, oblong. 2-3 f. 



lacus"tris, (b. Z^.) beardless; leaves short- 

 ensifonn ; scape much shorter than the leaf, 

 1-flowered ; petals attenuated on the tube ; 

 capsule turbinate, 3-sided, margined ; seed 

 roundish, smooth ; root tuberous. 



missou'riensia, (y. b. l^-) beardless; stem 

 terete, higher than the leaves, somewhat 

 3-flowered ; leaves nan*ow, ensiform ; cap- 

 sules oblong-linear ; flowers bicolored. 

 12-16 1. 



sam"hnci'na, (elder-scented iris, garden- 

 iris, b. p. w. M. 2J[.) stem many-flowered, 

 higher than the leaves ; divisions of the co- 

 rolla emarginate, outer ones flat ; leaves in- 

 flex-falcate at the apex ; spatha membrana- 

 ceous at the apex ; lower flowers pedun- 

 cled ; stigmas with acute, serrate divisions. 

 18-24 i. Ex. 



aibiri'ca, (b. .Tu. 2^.) beardless ; stem hol- 

 low, terete, higher than the leaves, some- 

 what 3-flowered ; leaves linear ; capsules 

 short, 3-angled, obtu.se at each end. S. 



ISAN"TIIUS. 13-1. (Labiatce.) [Fromisos, 



equal, anthos, flower.] 



coeru'leua, (blue gentian, false pennyroyal, 

 b. .Tu. (^.) viscid, hairy ; leaves lance-oval, 

 acute at both ends, 3-nerved ; peduncles 

 1-2 flowered. 



»SA'TlS. 14-1. {Cruciferm) [Name given 

 by Dioscorides, origin unknown.] 



tincto'ria, (woad, J. ^ .) radical leaves 

 crenate, cauline ones sagittate, oblong. 

 1SNAR"DIA. (See LuDwiGiA.) 

 ISOME'RIS. 6—1. {Cappar"ides.) [From 

 isos, equal, and meris, divisieiis.] 

 arbo'rca, (y, ^.) leaves crowded, trifoliate; 

 leafets lanceolate, somewhat mucrOnate, 

 glabrous ; calyx campauulate ; segments 

 triangular-ovate, acuminate. 

 I'TIBA. 5—1. (.Saxifrages.) 



virgiii"ica,- (w. J. 9.) leaves alternate, 

 lanceolate, acuminate, serrulate, pubescent 

 beneath ; flowers in terminal racciiies. 4-8 f. 

 I'Va. 17—4. {Corymbifcra.) 



frutes"ccn!<, shrubby ; leaves oppo.site, 

 lanceolate, deeply serrate ; heads globular, 

 depressed. Seacoast. 3-8 f. High-water 

 shrub. Flowers green. 



ivibricn'ta, (Au. ^.) perennial, glabrous, 

 leaves linear-lanceolate, cuneate, succulent, 

 the upper alternate and very entire ; invo- 

 lucrum imbricate ; chaflp of the receptacle 

 spatulate. (S. 



xanthifo'lia, (Au. 0.) leaves opposite, 

 petioled, heart ovate, acuminate, doubly- 

 sen-ate, softvillous, hoary beneath ; spikes 

 naked, panicled. 5-6 f. S. 



cilia' ta, (Ju. ^.) herbaceous ; leaves 

 lance ovate, sub -serrate ; spike somewhat 

 crowded ; bracts lanceolate, acuminate , 

 bracts and petioles long-ciliate. 2 f, S. 

 IX"IA. 3 — 1. (IridecE.) [From iksos, glue 

 from tlie gummj^ juice of some plants wliich 

 first bore the name.] 



chi7Leii"sis, (blackben-j' lily, -y. r. J. 11.) 

 corolla about 6-petalled ; stem flexuous ; 

 leaves ensiform. Ex. 



caslesti'na, (b. M. 11.) leaves linear-sub- 

 ulate, much shorter than the 1-flowered 

 scape. jS. 



JASMI'NUM. 2—1. (Jasmina:.) [From ion, 

 a violet, and asme, odor.] 

 fru'ticnns, (jasmine, y. ^.) leaves alter 

 natc, ternate, simple ; leafets obovate, 

 wedge-fonn, obtuse ; branches angled. Ex. 

 officina'le, (jasmine, w. ^.) leaves pin- 

 nate, opposite ; leafets acuminate. Ex. 

 JATRO'PIIA. 19—15. (Euphorbia:.) [From 

 Jatros, an ancient physician.] 

 stimulo'sa, (w. Ju. If.) hispid, with pric- 

 kles ; leaves palmatc-lobed ; lobes toothed ; 

 cymes short i)cdunclcd. 6-8 i. <S'. 



elas"tic(t, the juice atrords the elastic gum 

 called caoutchouc, or Indian-rubber. 



mnni'hot alibrds the cassada root. (S^. 

 JEFFEKSO'NIA. 8—1. (Papaveracea.) [In 

 honor of Thomas Jefferson, named by Bar 

 ton] 



dlphyV'la, (twin-leaf, w. M. If.) stemless; 

 peduncles naked, 1-flowered; leaves in 

 pairs. 

 JU'GLANS. 19-12. (Tcrehintacecf.) 



cine'rea, (butternut, M. Tp.) leafets nume- 

 rous, lanceolate, serrate, rounded at the 

 base, soft pubescent beneath ; petioles vil- 

 lose ; fruit oblong-ovate, viscid, long-ped- 

 uncled. 



rii'gra, (black walnut, M. Tp .) leafets nu 



merons, lance-ovate, serrate, sub-cordate, 



narrowed abovp ; pt'tioles and under side of 



the leaves sub-i)ube.<cont ; fruit gloUose. 



i with scabrous puucture.s; out wrinkled. 



