TRIANDRIA— MONOGYNIA. Iris. 49 



spreading, 3 or 4 inches long. Fl. blue or purplish, ribbed, 

 varying to white or yellow, on simple or branched, sometimes 

 leafy, curved stalks. 



21. IRIS. Iris, or Flower-de-luce. 



Linn. Gen. 27. Juss.b7. Fl.Br.4l. Toum. t. 186— 188. Lam. 

 1.33. Gcertn.t.\3. 



Nat. Orel, see n. 19. 



Col. an inferior sheath, of 2 leafy valves. Cor. superior ; 3 

 outer segments largest, rounded, reflexed, opposite to, 

 and applied underneath, the stigmas ; sometimes hairy 

 above : inner erect, narrow : all united by a firm thick 

 base. Filam. awl-shaped, lying on the larger segments. 

 Arifhm oblong, depressed. Germ, oblong, with 3 furrows. 

 Style short, thread-shaped. Stigm. 3, equal, dilated, and 

 of the texture of petals, two-lipped ; upper lip cloven, 

 erect ; lower minute ; with a cleft between them to re- 

 ceive the pollen. Caps, angular, of 3 cells and 3 valves. 

 Seeds numerous, 2-ranked, globular, or angular from 

 pressure. 



Perennial smooth herbs, with a tuberous, sometimes bul- 

 bous root. Stem leafy below, erect, round. Leaves 

 sheathing, mostly sword-shaped. Fl. several, large, pur- 

 ple, blueish, or yellow. 



1 . I. Pseud-acorus. Yellow Water Iris. 



Corolla beardless; inner segments smaller than the stigmas. 

 Leaves sword-shaped. Seeds angular. 



I. Pseud-acorus. Linn. Sp. PL 56. Willd. v. 1. 232. VahlEnum. 



v. 2. 138. Fl. Br. 41. Engl. Bot. v. 9. t. o/8. Curt. Lond.fasc.3. 



t.4. Woodv. t. 40. Hook. Scot. 16. FL Dan. t. 494. Bull. Fr. 



t.137. Poit. # Turp. Par. t.46. Cord. Hist. 134./. 

 I. n. 1260. Hall. Hist. v. 2. 129. 

 I. palustris lutea. Rati Syn.374. Ger. Em.50.-f. 

 Pseudoacorum. Matth. Valgr.v. 1. 20./. 

 Pseudoiris. Dod. Pempt.24S.f. 

 Acorus. Brunf. Herb. v. 2. 47. f. 

 Acorum falsum. Camer. Epit. 6.f. 

 A. omcinarum. Fuchs. Hist. 13./. 12. 



In ditches, pools and rivers frequent. 



Perennial. July. 



Root horizontal, depressed, brown, very astringent. Stem 3 or 4 

 feet high. Leaves erect, ribbed, grass-green. FL from 3 to 6, 

 large, handsome, bright yellow ; disk of the larger segments 

 pencilled with dark purple. 



VOL. i. E 



