826 



IRIS 



keel and purple veins; inner segments shorter, straight, 

 oblanceolate : style crests small. Central and S. Europe. 

 B.M. 58. 



Var. ndtha, Bieb. (I.halophylla,Ker.). More robust: 

 Ivs. 1 in. broad: spathes larger: stem 2-3 ft. high. Cau- 

 casus to Kashmir. Int. 1780 by Peter Pallas. B.M. 875. 

 -Hardy. 



SUBGENUS PARDANTHOPSIS. 



31. verna, Linn. Dwarf, 6 in. high: rhizome wide- 

 creeping: sheaths not splitting into fibers : Ivs. linear, 

 slightly glaucous, 3-8 in. long: stem scarcely any, 1- 

 headed: tube slender, 1% in. long: limb deep violet ; 

 outer segments 1% in. long, obovate, narrowed into a 

 slender yellow, slightly pubescent claw; inner seg- 

 ments erect, smaller, violet. Shade, Ohio, Ky., Va. and 

 south. L.B.C. 19:1855. 



SUBGENUS EVANS1A. 



A. Stem very short 32. cristata 



AA. Stem equaling or exceeding the Ivs. 

 B. Pedicels much shorter than the 



spathe 33. tectorum 



BB. Pedicels as long as the spathe, and 



articulate at the apex 34. Milesii 



35. Japonica 



32. cristata, Ait. Plant dwarf : rhizome slender, 

 creeping: Ivs. ensiform, thin, 4-8 in. long, green: stem 

 1-3 in. high, flattened, 1-headed, bearing 2-3 Ivs. : tube 

 slender, l%-2 in. long: limb blue; outer segments obo- 

 vate, 1-1% in. long, crested; inner segments shorter, 

 naked. Apr., May. Mts. Ky., Va. and Carolinas. B.M. 

 412. Gn. 45, p. 127. L.B.C. 14:1366. 



33. tectdrum, Maxim. Fig. 1175. Lvs.lft.long,ensiform, 

 strongly ribbed: stem 1% ft., subterete; heads on long 



1174. Japanese Iris (X%). 

 Iris Icevigata, better known as I. Kcempferi. No. 28. 



peduncles: tube 1 in. long : limb bright lilac ; outer seg- 

 ments 2 in. long, obovate ; claw half as long as the blade, 

 streaked with violet, with a wavy edge and a large, la- 

 ciniate, white and lilac crest running up the claw and 

 half up the blade ; inner segments spreading, nearly as 



IRIS 



.large, plain lilac, short-clawed. Sent to Eu. in 1872 by 

 Dr. Hance. Cult, in China and Japan. B.M. 6118. F S 

 22:2282. Gt. 716. Gn. 50:1086. 



34. Milesii, Baker. Lvs. 7-8 on the stem, 2-3 ft. long 

 and 2-3 in. broad : stem 2-3 



ft. high, branched, bearing 

 4-5 heads: fls. bright lilac, 

 lasting only a day; outer 

 segments oblong- cuneate, 

 claret-purple, whitish in the 

 center, spotted and veined 

 with lilac, furnished with a 

 deeply laciniated yellow 

 crest ; inner segments ob- 

 long, spreading; style crests 

 deeply toothed. Near /. tec- 

 torum, but inferior. Hima- 

 layas. B.M. 6889. 



35. Jap6nica, Thunb. (/. 

 Chinensis, Curt. /. fimbri- 

 dta,Vent.). Fig. 1176. Lvs. 

 ensiform, 1-1% ft. long : 

 stem slender, as long as the 

 Ivs., with a raceme of lilac 

 fls.: tube % in. long: outer 

 segments 1-1 % in. long, 

 with crimped margins, yel- 

 low on the claw, crested; 

 inner segments smaller. 

 Winter. Japan and China. 

 B. M. 373. Gt. 511. Gn. 

 28:503. J. H. III. 31:185. 

 A. G. 12:704. F. R. 2:149.- 

 An evergreen greenhouse 

 plant. 



1175. Iris tectorum 

 No. 33. 



SUBGENUS PSEUDEVANSIA. 



36. Alberti, Regel. Lvs. ensiform, glaucous, l%-2 ft. 

 long: stem exceeding the Ivs., bearing 5-6 heads in 

 a loose panicle; outer segments obovate cuneate, 2 in. 

 long, bright lilac, with a rudimentary crest and a dense 

 beard of white, yellow-tipped hairs, veined; inner seg- 

 ments as long and broader than the outer, with convolute 

 claws, lilac. Discovered in Turkestan by Dr. Albert 

 Regel. Gt. 999. B.M. 7020. 



SUBGENERA POGON1RIS AND REGELIA. 



A. Dwarf: Ivs. generally less than 



9 in. long. 



B. Pedicel obsolete, or very short. 

 c. Perianth tube 2 in. or more . 



in length 37. pumila 



38. pseudo-put 

 cc. Perianth tube 1 in. or less 



in length. 

 D. Stem 6 in. or more in 



length. 

 E. Fls. blue, purple, 



violet, etc. 



F. Spathe valves green 

 or nearly so. 



G. Lvs. linear 39. gracilis 



GG. Lvs. ensiform.. .40. Balkana 



41. biflora 



F. Spathe valves en- 

 tirely scariose . . .42. Cengialti 



EE. Fls. yellow 43. virescens 



44. lutesceus 



DD. Stem 2 in. or I e s s in 

 length. 



E. Fls. blue 41. biflora 



EE. Fls. yellow 45. Chamaeiris 



BB. Pedicel as long as the ovary. 

 C. Sheaths not splitting into 



fibers '. 46. arenaria 



cc. Sheaths splitting into fibers .47. flavissima 

 AA. Tall: Ivs. generally more than 



1 ft. long. 

 B. Stem 2-6-headed. 



c. Fls. yellow 48. variegata 



49. flavescens 



