IRIS 



16. Douglasi4na, Herb. Rhizome stout, short, creep- 

 ing: Ivs. about (j in a tuft, broade.st in the middle, 

 strongly ribbed, 1-2 ft. long: stem 1-2 ft. high, usually 

 simple, with one long bract leaf: tube K-% in. long': 

 fls. 3-4 in. in diameter; outer segments obovate-spatu- 

 late, spreading and recurved, pale lilac, with a white 

 disk and purple veins ; inner segments shorter, erect, 

 lanceolate, acuminate, pale lilac, not veined. Calif 

 B.M. 6083. Gn. 50:1086. 



17. fiilva, Ker. {I. caprea, Pursh). Lvs. thin, bright 

 green, lK-2 ft. long, not exceeding the stem: stem 2-.'i 

 ft. high, forked low down ; .lower stem-lvs. 1 ft. long: 

 pedicel produced : tube greenish yellow, 1 in. long: 

 limb loosely expanded, bright reddish brown or copper- 

 colored, variegated with blue and green ; outer segments 

 obovate-cuneate, emarginate; inner segments smaller, 

 spreading. Late .June. In swamps. 111. to Ga., La. and 

 Tex. Introduced into England 1811 by Lyon. B M 

 1496. Gn. 53:1175. Mn. 5:61. 



18. Pseudicorus, Linn. Lvs. lK-3 ft. long, equaling 

 the stem: stem stout, terete, 2-3 ft., bearing several 

 long lvs. and several clusters of fls. : limb bright yellow; 

 outer segments broadly obovate, 2-2K in. long, yellow, 

 with a bright spot and radiating brown veins on the 

 claw; inner segments scarcely longer than the claw of 

 the outer, oblong. May, .June. Europe, Syria and the 

 Barbary states; naturalized in N. Y., Mass. and N. .J.— 

 The plants form fine, large clumps, bearing numerous 

 flowering stalks. Var. variegata, Hort. Lvs. striiK-d 

 with creamy white. Var. pallida, Hort. Fls. pale sulfur- 

 yellow. 



19. versicolor, Linn. Lvs. slightly glaucous, \>-{-2 ft. 

 long: stem forked low down and often branched above, 

 2-3-headed: tube very short: limb violet-blue; outer 

 segments spatulate, 2-3 in. long, variegated with yellow 

 on the claw and veined with purple ; inner segments 

 oblanceolate, much smaller. British N. A. and northern 

 U. S. Int. into Eng. 1732. B.M. 21. G.W.F. 5. D. 89. 



20. hex4gona, Walt. Lvs. 2-3 ft., long: stem usually 

 simple, 3 ft. long, 2-3-headed, with several large lvs., 

 the upper ones exceeding the lis. : spathe valves some- 

 times leaf -like: tube 1 in. long, green, dilated upward: 

 limb bright lilac; outer segments 3 in. long; blade obo- 

 vate, with a bright yellow keel on the claw; claw 

 tlowny; inner segments shorter, erect ; style branches 

 very concave, green, with a central lilac band. Ky. to 

 Tex. and Fla. B.M. 6787. 



21. Caroliniina, S. Wats. Lvs. 2-3 ft. long, bright 

 green: stem stout, simple or branched: tube ^^ in. long: 

 limb lilac, variegated wdth purple and brown ; outer 

 segments broadly spatulate, 2%-3 in. long, with narrow 

 claws; inner segments narrower, nearly erect. Differs 

 from /. vcrsicolorhyits green lvs. Discovered by W. A. 

 Manda in N. Car. G.F. 6:335. 



22. setdsa, Pallas. Lvs. thin, green, 1-lJ.,' ft. long : 

 stem deeply forked, much exceeding the lvs. : tube ^ in. 

 long: limb bright lilac; outer segments 2-2 J-^ in. long; 

 blade 1 in. broad, suddenly narrowed at the claw, co- 

 piously veined; inner segments very small, 3-2 in., cu- 

 neate, large-cuspidate; style branches large, crested. 

 E. Siberia, .Japan, and northwestern Amer. B.M. 2326. 

 Gt. 322. 



23. Gueldenstoedtiina, Lepech. Lvs. pale green, l-l'-j 

 ft. long: stem stoiit, terete, 13-2-2 ft. long, often bearing 

 1-2 spicate clusters below the end one: limb pale yel- 

 low; outer segments with an orbicular blade 3'2-?4 in. 

 broad, shorter than the claw, which has a bright yellow 

 keel and faint lilac veins; inner segments shorter, 

 erect. Asia. — Var. Sogditaa, Baker. A variety with 

 gray-lilac flowers. 



24. aiirea, Lindl. Lvs. scarcely glaucous, lM-2 ft. 

 long: stem 3-3^2 ft. long, stout, terete, with 1-2 sessile 

 clusters below the end one: spathes 2-3-fld. : pedicel 

 long: limb bright yellow; outer segments with an ob- 

 long blade 1 in. broad, as long as the claw; inner seg- 

 ments less than K in. broad. July. West Himalayas. 

 B.R.33:o9. Gn. 31 :579.-Int. by Dr. Royle. Thisspecies 

 has brighter yellow fls. than the others of this group 

 (18-21). 



25. MonniSri, DC. Lvs. slightly glaucous, 2-3 ft. long: 

 stem stout, terete. 3-4 ft. long, with several sessile clus- 



IRIS 



825 



ters of Hs.: limb 2'.,-3i,, in. long, lemon-vcllow, with- 

 out veins; blade of outer segments orbicular, 1-1}^ in. 

 long, equaling the claw; inner segments oblong-ungui- 

 culate, 1 in. broad. Rhodes and Crete. Discovered and 

 int. by Sieber, 1821. Not showy except in masses. This 

 and /. orifiiliilis are perhaps varieties of/, xpiirin. 



1173. Habit sketch of Iris orientalis (Xl-SU). Ko, 26. 



26. orientilis. Miller (/. oehroleuca, Liim. I. gigaii- 

 t/-ii,Ga.Tv.). Pig. 1173. Plants growing in strong clumps: 

 Ivs. 2-3 ft. long, slightly glaucous: stem 3-4 ft., stout, 

 terete, with 2-3 spicate clusters of fls.: outer segments 

 obovate, 1 in. broad, as long as the claw, yellow, paler 

 or white toward the margin ; inner segments oblong, 

 1 in. broad, lemon-yellow to whitish. Asia Minor and 

 Syria. B.M. 61. Gn. 20:301; 38:779; 46, p. 362 and 50, p. 

 186. R.H. 1875, p. 357. -One of the largest of the Irises. 

 Gi'ows in almost any situation. White forms of this 

 plant are in cultivation. 



27. foetidissima, Linn. Gladwin. Lvs. 1-1% ft. long: 

 stem compressed, 2-3 ft. long, 2-3-headed : tube K in. 

 long: limb bright lilac; outer segments l}^-2 in. long, 

 with a suborbicular blade equaling the claw; inner seg- 

 ments shorter, oblanceolate. Central and S. Eu., Eng., 

 Afghanistan and Algeria. Gn. 47, pj. 30. — This plant is 

 very distinct, and is easily recognized by the odor of the 

 broken lvs. The capsules remain on the plants in win- 

 ter, bursting open and displaying rows of orange-red 

 berries. The fls. are rather inconspicuous. There is a 

 whitish variety with brown veins, and a variety with 

 white-striped lvs. 



28. laevigata, Fiscb. & Mey. (/. Ku'mpferi, Sieb.). 

 .Tap.^xese Ikis. Fig. 1174. Lvs. thin, ensiform, l-l^--^ 

 ft. long : stem much overtopping the lvs., obscurely 

 angled. 1-3-headed ; pedicel y^-2 in. long; tube short: 

 limb blue, violet, etc., sometimes white, spreading, 3-.5 

 in. across; outer segments broadly ovate-oblong, obtuse, 

 with a yellow spot on the claw ; claw short, distinct; 

 inner segments oblanceolate, erect, conniving or spread- 

 ing: style branches with bifid, incurved lobes. E. Si- 

 beria and .Japan. Int. by Von Siebold, and flowered at 

 Ghent in 1857. B.M. 6132. I. H. 5:157. F.S. 20:207.3-74; 

 23:2431-36. Gt. 442. Gn. 9:21; 16:195 ; 21:341; 55, p. 

 105. R.H. 1890, p. 188. G.C. III. 13:165,169; 14:501. 

 A. G. 19:596. Gng. 1:250; 5:163; 6:339; 7:145. J.H.IIl. 

 28:205. P.E. 10:777. F.M. 1874:137; 1880:403. 



29. Troj&.iia, Kerner. Lvs. very acute, glaucescent: 

 stem over 3 ft. high, much branched and overtopping 

 the lvs.: pedicel none : rts. bright violet-puiple; outer 

 segments obovate; blade longer than the claw; claw 

 white, bordered with yellow and veined with brown-pur- 

 ple; inner segments elliptic, suddenly narrowed to a 

 claw: style crests broad, denticulate. Troad, Asia Minor. 



30. sptiria, Linn. Lvs. firm, linear, glaucescent, 1 ft. 

 long : stem overtopping the lvs., bearing 1-3 spicate 

 heads : pedicel shorter than the spathe : tube l-i-% 

 in. long: limb bright lilac; outer segments with an 

 orbicailar. spreading blade }.< in. broad and half as long 

 as the claw: claws broad, concave, lilac, with a yellow 



