196 133. Trichomema. 20. IRIDE^. Pl.end.ph. 



Scape 3 in. high ; leaves very narrow, flexuous, furrowed ; 

 perigonhun blue, tube very short ; spathe half as long as the 

 perigonium ; scape shorter than the leaves. 



III. IS*. IRIS. Theophrastus. Fleur-de-luce. 



Tula of the perigonium short ; limb 6-parted ; lobes un- 

 equal, 3 outer lobes spreading or reflexed; 3 inner smaller, 

 upright or inflexed; stamens 3, distinct; style 1, short, 

 S-lobed ; lobes petaloid, often nicked, furrowed above ; stig- 

 mata 3, on the duplicatures on the lower surface of the peta- 

 loid lobes ; capsule 3-sidcd ; seeds many, globose ; spermo- 

 dermis double ; shell spongy, loose ; corculum straight, half 

 the length of the perisperm. — Leaves ensiform, 2-rowed; 

 stem compressed, leafy ; spathe 2 6r 3 valved, 2 or 3 flow- 

 ered; valves keeled, herbaceous, edge membranaceous: 

 Jiowers fascicled, yellow or blue, striated or veined. 



a. Leaves flat, equitant, ensiform, 2-rowed ; rhizoma 

 creeping, depressed, umiulate ; lobes of the perigonium 

 beardless. Iris. 



1 . Iris palustris. Marsh fleur-de-hice. 

 Stem compressed, ovate, many-flowered; lobes of th@;. 



perigonium beardless ; inner erect, smaller than the stig- 

 mata; leaves ensiform. 



Iris palustris lutea, Rati Syn. 374, 1 ; Ger. em. 50,2. 



Iris Pseudaconis, Lin, S. P. 56. 



Iris lutea, Lamarck Fl. Fr. 3, 496. 



Iris palustris, Salisb. Prod, 44. 



Yellowjlag. tVaierfuig. Bastard Jleur-de-'ucc. Seggs, in the North. 



Ponds and watery-places ; perennial ; July. 



Stem 4 feet high, 3 to 6 flowered, higher than the leaves; 

 leaves 1 in. broad ; flowers yellow, spotted with deeper 

 yellow, veined with black; stigmata yellow. — Roots acrid 

 when fresh, warm when dry, may be substituted for galan- 

 gals; juice of the root purgative in doses of 80 drops every 

 hour, but is very violent in its operation; seeds roasted 

 resemble coffee, having more nearly the same aroma than 

 any other substitute for that drug. 



^. pallida. Flowers pale yellow or white. 



Iris palustris pallida, Raii Syn. 375,2, 



2. Irisfoelida, Stinking fleur-de-liics. 

 Stem 1 -edged, few-flowered; lobes of the perigonium 



beardless; inner larger than the stigmata, spreading very 

 much; leaves swordshape; ovary 3-sided; angles furrowed., 

 2-cut. 



