Tab. 7029. 



IRIS SdWABOWL 



Native of Central Asm. 



Nat. Ord. Ieideje.— Sub-order Mo&XB.£. 

 Genus Ibis, Linn. ; (JBenth. et Mook.f. Gen. PL vol. iii. p. 686.) 



Ibis (Pogoniris) Suwarowi; rbizomatosa, foliis linearibus glaucis falcatis pe- 

 dalibus. pedunculo monocepbalo subpedali, spathse valvis exterioribus oblongo- 

 lanceolatis ventricosis ad anthesin viridibue, ovario Bobcvlindrico breviter 

 pedicellate, perianthii tubo cvlindrico ovario eequilonjro, segmentis luteo- 

 viridibus crebre rubro-purpureo linearis, exteriorious oblongo-cuneatis supra 

 medium barb.itis, interioribus oblongis lona^e unguiculatis, ungue ssepe sed 

 baud semper leviter barbato, styli cristis deltoideis erenulatis, antheris linearibus 

 filameuto brevi. 



I. Suwarowi, Be a el Descr. Plant. Nov. fasc. x. p. 45; Garten/I. vol. xxxv. (1886) 

 p. 397. 



I. lineata, Foster; Regel Oartenfi. vol. xxxvi. (1887) p. 201, t. 1244, figs. 1-6. 



This is another very distinct Iris, which has lately been 

 discovered in Central Asia. Our single wild specimen in 

 the Kew herbarium was gathered by Dr. Albert Regel 

 in Turkestan in June, 1885. It was flowered by J\lax 

 Leichtlin at Baden Baden in 1886, and both at Kew and 

 by Professor Foster in May, 1888. The various specimens 

 show a considerable range of variation, and it seems quite 

 clear now that Iris I'm eni a of Foster is a mere form of the 

 original Suwarowi. Botanically the species is interesting, 

 because it varies in the presence or absence of a beard 

 down the claw of the inner segments of the perianth. I 

 am quite prepared now to admit, what Professor Foster 

 has for some time maintained, that it is not desirable to 

 keep up Hexajiogon as a section of the genus Iris distinct 

 from Pogoniris. 



Descr. Rhizome short, creeping. Produced leaves gene- 

 rally three on a side, linear, falcate, very glaucous, finally 

 a foot long, a quarter of an inch broad. Peduncle one- 

 headed, a foot long, bearing two or three much-reduced 

 leaves. Outer spathe-vahes oblong-lanceolate, acute, ven- 

 tricose, green at the flowering time, two or two and a half 



DECEMBEB 1ST, 1888. 



