HER IL LUCOUUCCLC OO HN 
IXIACEAE 337 
XI. VERSICOLORES 
Seeds in two rows in each carpel: sepal-blade orbicular- 
AE crestless, with very short zone of yellow- 
green extending but little if at all into the blade: 
E inno violet to purple. 
Sepals and petals with broad claws much es than 
the blades: petals much shorter than the sepals: 
style-appendages undulate-angulate. 2, I. versicolor. 
Sepals and petals with narrow claws nearly or quite 4. 
the sepals: style-appendages ine 93. I. Shrevei. 
Seeds; in one row in each carpel: dad blade obovate, 
oval, or elliptic or nearly so, ustally slightly crested, 
the crest papillose, with a zone of ye 2 or orange- 
yellow extending far into the claw from one-third to 
nearly one-half its length: perianth T lisht-vtolet to laven- 
der or whitish (very rarely violet). 94. I. virginica. 
TRIPETALAE 
Relatively slender plants with ee cord- like rootstocks : 
sepal-blade pat dart as or oval, with yellow blotch at 
the base: petal oe or slightly o ‘lobed, much shorter 
than the sepal- pied 5. I. tripetala. 
XIII. PSEUDACORI 
Plants B bright-yellow flowers, or cream COLOREM in al- 
binos: leaves overtopping the inflorescence 96. I. Pseudacorus. 
1. I. fulva Ker. Flower-stalk erect, mostly 0.5— 1.5 m. tall, slightly zigzag: 
flowers slightly fragrant: hypanthium covering the ovary sharply 6-angled: 
j le t opper- 
Swamps, | and . 
ditches, Coastal Plain a rarely more 
northern provinces, Ga. to E Tex., Mo., 
and Ky.—%Spr. — The ud of color 
through whieh this species ranges seem 
endless. They are various shades of 
orange, salmon, copper, E Don salmon-red, crimson, and’ scarlet, many 
of them curiously strea A. yellow- flowered form furnishes the only true 
yellow among our native eastern irises. 
2. a SO iy d Flower- stalk erect, strict: flowers scarcely fra- 
grant: sepals 8-9 g, arching: the claw greenish-yellow veined with 
yellow. green, the blades spatulate, D twice as long as the claw, wine-red 
to w PEE irregularly veined with br E purple, crestless, but the mid- 
rib of the e extending into the blade icu red-purple band: petals 
somewhat shorter than the sepals, wine- peret e-purple, except the yellow 
base of the claw: capsule not seen.—Swamps, ditches, and bayous, S La.—Spr. 
8. I. subfulva Small  Flower-stalk erect, rigid: sepals recurv 
long, the claw yellow, its wings pen neilled and flushed brown TT o : 
; e ; 
dark me : einy: 
orange-red, paler on the s and wings, the wing-margins yellowish; appen- 
dages flushed le: ere meets capsule not seen.—Swamps, marshes, 
and ditches, S La.—Spr. 
22 
