IRIS. 1 1 



rately firm, 1-1^ ft. long, | in. broad. Stem 2-8-lieaded, over- 

 topping the leaves, bearing 2-3 large leaves. Spathes 2-3- 

 flowered, 2-3 in. long; outer valves thin, green, lanceolate; pedicels 

 an inch or more long. Perianth-tube cylindrical, J-)^ in. long ; 

 limb bright lilac, 2-2^ in. long; falls with a suborbicular blade an 

 inch broad, about as long as the copiously veined haft and narrowed 

 to it suddenly ; standards, erect, obovate, cuspidate, f in. long. 

 Style-branches an inch long ; crests small, deltoid. Capsule 

 oblong-trigonous, l-l-J in. long. 



Hab. Canada. Habit of I. versicolor, but easily recognised by its small 

 cuneate cuspidate standards. Nearly allied to I. setosa. 



31. I. SETOSA Pallas; Led. Fl. Boss, iv. 96; Eegel Gartenfl. 

 t. 322. I. l)racJujcuspis Fisch. in Bot. Mag. t. 2326. Xiphion 

 brdclii/ciispis Alefeld. Xyridion setosum Klatt. — Khizome stout, 

 oblique ; sheaths splitting up into fine fibres. Le^ives thin, green, 

 ensiform, 1-1| ft. long, ^-1 in. broad. Stem deeply forked, much 

 overtopping the leaves, bearing 2-3 heads and 2-3 large leaves. 

 Spathes 2-3-flowered, 1^-2 in. long; outer valves thm, green, 

 lanceolate ; pedicels 1-1^ in. long. Periautli-tube cylmdrical, 

 ^ in. long ; limb bright lilac, 2-2^ in. long ; falls with an orbicular 

 blade above an inch broad, narrowed suddenly to the copiously 

 veined haft ; standards ^ in. long, cuneate with a large cusp. 

 Style-branches an inch long; crests deltoid. Capsule oblong- 

 trigonous, 1^ in. long, suddenly narrowed at the base, truncate and 

 inflated at the apex. 



Hab. Eastern Siberia, Japan and North-western America. 



32. I. PsEUDAcoEus Linn, Sp. Plant. 56 ; Engl. Bot. t. 578 ; Fl. 

 Dan. t. 494. I. lutea Lam. I. palustris Moench. J. lunr/ifolia DC. 

 Xiphion Pseudaco) as Pari. Xyridiun Pseudacorus Klatt. — Rhizome 

 stout, short-creeping; sheaths not breaking up into fibres. Leaves 

 thin, ensiform, glaucous, finely ribbed, 1^-2 ft. long, f-1 in. broad. 

 Peduncle stout, terete, 2-3 ft. long, forked low down, bearing 

 several long leaves and several clusters of flowers. Spathes 

 2-3-flowered, 2^-3 in. long ; outer valves lanceolate, green with 

 white edges ; pedicels shorter than the spathes. Perianth-tube 

 ^ in. long ; limb bright yellow, 2-2^ in. long ; falls with an 

 orbicular blade 1-1^ m. broad, longer than the halt, which has a 

 brighter spot at the throat and radiating brownish veins ; standards 

 erect, lanceolate, -J^-f in. long. Style-branches an inch long ; 

 crests deltoid. Capsule oblong, obtusely angled, 2^-3 in. long, 

 with a large slender beak. 



Var. I. AcoKoiDEs Spach. (Bot. Mag. t. 2239j. — Limb of the 

 falls pale yellow, haft without the usual callosities, which fit into 

 the standards, which are longer than usual. 



Var. I. Bastakdi Boreau Fl. Cent. edit. ii. 635. — Flower pale 

 ochraceous yellow ; falls with a round-oval blade, prominently 

 veined, but not blotched at the base, the claw not more than half 

 as long as the blade, furnished, as in the type, with two callosities 

 at its base. 



Var. L AcoRiFOEMis Boreau }oc, cit. — Blade of the falls round, 



