POGONIRIS 131 



Sir Michael Foster has raised a hybrid with /. Cengialti, 

 known as " Balceng." /. balkana is the female parent. 



80. I. Eulefeldi, Regel, Gartenflora, vol. xxvii. 

 (1878), p. 324, t. 954; Sot. Mag., t. 6902 (l886). 

 This is a very fine and distinct plant, but a shy 

 flowerer. The rhizome is stout, of the usual Pogoniris 

 character. The leaves are five or six to a cluster, I 

 ft. or more long, and I in. or more broad, so re- 

 markably of glaucous grey-green colour as to be quite 

 distinct in this respect from other Irises in cultivation. 

 The stem is about I ft. high, with a sheathing leaf half 

 way up, and bearing two flowers at the top. The 

 spathe-valves are 2 in. long and f- in. wide, pale green 

 at first, finally colourless and diverging, exposing the 

 ovary. The perianth-tube is thick, of red-purple 

 colour, twice as long as the ovary ; the falls obovate- 

 cuneate, recurved to near the base ; the colour of the 

 blade is lilac or pale purple, with purple veins ; below 

 the veins are brownish on lighter ground ; the beard 

 reaches into the blade, the hairs white-tipped with blue- 

 purple ; the standards are erect-connivent, cuneate- 

 spathulate; veins thickish and red-brown on the yellow 

 claw, redder on the blade, with blue-purple prolonga- 

 tions of peculiar hue towards the margin. The style- 

 arms are blue-purple, rather elevated above the beard ; 

 crests oblong, toothed on the outer edge. The pollen 

 is scanty, of blue colour. A native of Eastern 

 Turkestan, on mountains near Siudun, at an elevation 

 of 5 to 6 ft. It requires the treatment of 

 Oncocyclus, but is less difficult to grow. Was figured 

 from the Cambridge Botanic Garden. 



81. I. atroviolacea, Lange in Bot. Tids., 1882, 18. 

 The rhizome is short creeping and stout. The leaves 

 are ensiform, very glaucous, a foot long at flowering 

 time, f to I in. broad. The stem is one-headed, about 

 as long as the leaves ; spathes two to three flowered ; 



