IRIS 



IRIS 



1677 



p. 23. G.W. 12:678. Gn.M. 15:362. Common in 

 cult. The plants form large, compact clumps, produc- 

 ing many long flowering sts. from the center. Each st. 

 usually has a terminal cluster of 2-5 fls. and 1 lateral 



head. Var. variegata, 

 Hort., has variegated 

 Ivs. Var. acuta, Hort. 

 Narro \v-lvd. Var. 

 flexuosa, Murray (/. 

 flexuosa, Murray. I. 

 sibirica var. alba, 

 Hort.). Fls. white 

 with crisped segms. 

 B.M. 1163. 



66. prismatica, 

 Pursh (7. grdcilis, 

 Bigel. 7. virginica, 

 Muhl.). Plant tall, 

 slender: Ivs. mostly 

 shorter than the st., 

 grass-like: st. 1-2 ft., 

 s i m p le or forked, 

 flexuous : spathes 1-2- 

 fld. : pedicel long, ex- 

 ceeding the spathe: 

 outer segms. 1 %-2 in. 

 long; blade shorter 

 than the claw, bright 

 lilac, yellow on the 

 throat, marked with 

 purple and darker 

 veins; inner segms. 

 erect, bright lilac. 

 May, June. Wet 

 grounds, New Bruns. 

 to Pa. and N. C. B. 

 M. 1504. 



67. unguicularis, 

 Poir. (/. stylosa, Desf. 

 /. cretensis, Janka). 

 Fig. 1970. Lvs. about 

 6 in a tuft, finally 

 1^-2 ft. long, bright 

 green: st. nearly ob- 

 solete : spathes 2-3- 

 fld.; valves 4-6 in. 

 long, scarious at the 

 tip only, shorter than 

 the tube: tube 5-6 in. 

 long, filiform, exserted 

 from the spathe; limb 

 bright lilac, rarely 



white; outer segms. 2j/-3 in. long, 1 in. broad, with a 

 yellow keel, streaked with lilac on a white ground at 

 the throat; inner segms. oblong. Jan., Feb. Algeria, 

 Greece and Islands, Asia Minor and N. Smyrna. B.M. 

 5773; 6343. R.H. 1900:300. Gn. 24:68; 46:248; 

 49, p. 236; 50, p. 187. G.C. III. 25:85. F.S.R. 35, 

 p. 131. G. 9:590; 34:115.' G.L. 19:48; 22:378. Gn. 

 W. 20:159. Not hardy, but useful for cutting in early 

 winter. Fragrant. Var. alba, Hort. White form; 

 spring. C.L.A. 5:134. Gn. 68, p. 381. Var. superba, 

 Hort. Bluish purple. Oct. and later. Var. speciosa, 

 Hort. FLs. well above the foliage, deep reddish purple. 



68. bracteata, Wats. Fig. 1971. Rudimentary Ivs. 

 brown, very rigid; produced Ivs. 1 to few, much ex- 

 ceeding the st., 1-2 ft. long, one side green, the other 

 glaucous, edge revolute: st. 1-headed, angled, 2-3 in. 

 to 1 ft. long, sheathed with bracts 2-4 in. long: tube 

 short, funnelform; outer segms. 2-3 in.; blade ovate, as 

 long as the claw, pale yellow, veined with bluish pur- 

 ple; inner segms. shorter, erect, yellow; style-branches 

 long, narrow. June. Discovered in 1884 by Thomas 

 Howell, in Ore. G.F. 1:43 (adapted in Fig. 1971). 

 G.C. III. 39:401; 52:338. G.M. 50:161. Intro. 1888. 



1971. Iris bracteata. (X 1 A) 



69. Sintenisii, Janka (/. graminea var. Sintenisii, 

 Richter. /. Urumovi, Velenovski). Lvs. narrow, linear, 

 acuminate, 8-18 in. long, M-Min. broad: st. round, not 

 flattened as in /. graminea, slender and flexuous, 4-12 

 in. long, almost entirely clothed by 2-3 reduced Ivs. 

 and bearing a single head of 2 fls.: spathe- valves 

 narrow, linear, acuminate, keeled, the inner longer 

 than the outer: ovary tapering to a long neck taking 

 the place of the perianth-tube: fls. bright lilac, 1^ in- 

 long; outer segms. with an obovate blade and a slightly 

 pandurate claw, bluish purple, whitish toward the 

 throat, marked with purple veins and with reddish 

 purple veins on the claw; inner segms. oblanceolate 

 with a cuneate claw deep blue-purple; style-crests 

 lanceolate. S. Italy, Balkan Peninsula, Asia Minor 

 and Turkey. 



70. Douglasiana, Herb. Rhizome stout, short, creep- 

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

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

 simple, with 1 long bract-lf.: tube ^-^in. long: fls. 

 3-4 in. diam.; outer segms. obovate-spatulate, spread- 

 ing and recurved, pale lilac, with a white disk and purple 

 veins; inner segms. shorter, erect, lanceolate, acuminate, 

 pale lilac, veined. Calif. B.M. 6083. Gn. 50: 272. 

 Exists in an endless variety of color-forms, varying 

 from pale lilac to deep violet with considerable varia- 

 tion in the veining. 



71. missouriensis, Nutt. (/. Tolmieana, Herb.). Lvs. 

 pale green, finely ribbed, 1-1 K ft. long: st. 1-2 ft. long, 

 usually exceeding the Ivs., bearing a single large If. low 

 down: pedicel long: tube very short; limb bright lilac; 

 outer segms. obovate, 1 in. broad, yellow near the 

 claw; inner segms. oblong, emarginate, straight, erect. 

 Wet soil. S. D. and Mont, to Ariz. B.M. 6579. Gn. 

 50:186. Not common in cult. Flowers early. 



72. fulva, Ker (7. cuprea, Pursh). Lvs. thin, bright 

 green, lJ^-2 ft. long, not exceeding the st.: st. 2-3 ft. 

 high, forked low down; lower st.-lys. 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 segms. obovate- 

 cuneate, emarginate; inner segms. smaller, spreading. 

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

 Intro, into England 1811 by Lyon. B.M. J496. Gn. 

 53:518. Mn. 



5:61. 



73. Pseudac- 

 orus, Linn. (7. 

 acormdes, Spach. 

 7. fldva, Tornab.). 

 Lvs. 1^-3 ft. long, 

 equaling the st.: 

 st. stout, terete, 

 2-3 ft., bearing 

 several long Ivs. 

 and several clus- 

 ters of fls.: limb 

 bright yellow; 

 outer segms. 

 broadly obovate, 

 2-2% in. long, 

 yellow, with a 

 bright spot and 

 radiating brown 

 veins on the claw; 

 inner segms. 

 scarcely longer 

 than the claw of 

 the outer, oblong. 

 May, June. Eu., 

 Syria and the 

 Barbary states; 

 naturalized in N. 

 Y., Mass, and N. 



J. The plants 1972. Iris versicolor ( X Yd . No. 74 



