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Iris flavissima, Pall. (I. arenaria, Waldst.). Lvs. thin, linear, 4-8 in. long: st. 1-6 in. long, 2-3-fld.: limb bright yellow; outer segms. 1-1 ½  in. long, ¾ in. broad; inner segms. oblong, narrower. Hungary, N. E. Asia and Altai region to Mongolia. B.R. 549. G.C. III. 29:337.—I. arenaria is the Hungarian representative of I. flavissima. It is smaller than I. flavissima, but otherwise scarcely distinct. var. bloudowii, Ledeb. (I. bloudowii, Ledeb.). More robust with broader lvs., a longer st. and larger fls. Gt. 29:1020. Turkestan, Siberia and China. var. minor, Hort. Smaller.

Iris humilis, M. Bieb. (I. ruthenica, Ker ex parte). Rhizome wide-creeping: lvs. linear, up to 12 in a tuft, glaucous, 6-12 in. long: st. not more than 1-1 ½ in. long, bearing 2 long lvs. immediately below the spathes: spathe 1-fld.; outer segms. with a suborbicular blade and a long cuneate claw, deep blue-purple with deeper veins, whitish on the throat, with deep purple veins; inner segms. oblanceolate, unguiculate, blue-purple. Caucasus to Georgia and Hungary. Gn. 10, p. 379. —Distinguished from I. ruthenica by the 2 long lvs. which arise below the spathe and are 2-3 times as long as the latter.

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