IRIS 



16. Douglasi&na, Herb. Rhizome stout, short, creep- 

 ing: Ivs. aliout 6 in a tuft, broadest in the middle, 

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

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

 lis. a-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. 0083. Gn. 50:1086. 



17. fiilva, Ker. (/. cfiprea, Pursh). Lvs. thin, bright 

 green, 1^2-2 ft. long, not exceeding the stem: stem 2-3 

 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 Jnne. In swamps. 111. to Ga., La. and 

 Tex. Introduced into Englancf 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. striped 

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

 yellow. 



19. versicolor, Linn. Lvs. slightly glaucous, l}4-2 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.P. 5. D. 89. 



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

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

 the upper ones exceeding the fls. : 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 

 downy; inner segments shorter, erect; style branches 

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

 Tex. and Fla. B.M. 6787. 



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

 green: stiiii stout, sinqile or branched: tube K in. long: 

 limb lilac, varie^ati-d witlt ])urple and brown ; outer 

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

 claws; inner segments narrower, nearly erect. Differs 

 from /. venlcolorhy its green lvs. Discovered by W. A. 

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



22. setdsa, Pallas. Lvs. thin, green, l-l}^ ft. long : 

 stem deeply forked, much exceeding the lvs.: tube 14 in. 

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

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

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

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

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

 Gt. 322. 



23. Gueldensttedtlftna, Lepech. Lvs. pale green, 1-lK 

 ft. long: stem stout, terete, l!^-2 ft. long, often bearing 

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

 low; outer segments with an orbicular blade K-zi in. 

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

 keel and faint lilac veins; inner segments shorter, 

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

 gray-lilac ilowers. 



24. ailrea, Lindl. Lvs. scarcely glaucous, \%-2 ft. 

 long: stem 3-3K 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 % in. broad. July. West Himalayas. 

 B.R. 33:59. Gn. 31:.579.-lnt. by Dr. Royle. This species 

 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- 



IBIS 



825 



ters of fls.: limb 2K-3H in. long, lemon-yellow, with- 

 out veins; blade of outer segments orbicular, 1-lH 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 /. orieiifnlis are perhaps varieties of /. spuria. 





1173. Habit sketch of Iris orientalis (Xl-20). No. 26. 



26. orientals, Miller (/. ochroleuca, Linn. /. gigan- 

 Ua,Ca.Tr.}. Fig. 1173. Plants growing in strong clumps : 

 lvs. 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. 

 Grows 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-beaded : tube % in. 

 long: limb bright lilac; outer segments lK-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, p. 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, Fisch. & Mey. (T. Kwmpferi, Sieb.). 

 Japanese Ikis. Pig. 1174. Lvs. thin, ensiform, 1-1^ 

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

 angled, 1-3-headed : pedicel \.i-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. bj' Von Siebold, and flowered at 

 Ghent in 1857. B.M. 6132. l.H. 5:157. P. S. 20:2073-74; 

 23:2431-30. 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. 1:2.56; 5:163; 6:339; 7:145. J.H. III. 

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



29. Trojflna, Kerner. Lvs. very acute, glaucescent: 

 stem over 3 ft. high, much branched and overtopping 

 the lvs.: pedicel none : fls. 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. spdria, Linn. Lvs. firm, linear, glaucescent, 1 ft. 

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

 heads : pedicel shorter than the spathe : tube J^-?i 

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

 orbicular, spreading blade J-^ in. broad and half as long 

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



