354 IXIACEAE 
nearly rotund, frilly, violet, radially veined darker all around crest, the crest 
median orange-yellow, three laterals at base of blade only making a broad 
E : 
wings white bec ma 
red-violet, lacerate-toothed: anther-tips barely included: eae not seen.— 
Ditches, bayou-banks, swamps, and marshes, S La.—Spr. 
84. I. parvicaerulea Alexander. Flower-stalk erect, slender, rigid: hy- 
panthium eovering the ovary 6-angled: sepals spreading, the blade and claw 
of about equal length, within, the claw greenish-cream, yellow-green veined, its 
wings cream, veined lilac-brown, the blade light blue-violet, the crest dull- 
lemon, tipped purplish-brown, the crest-zone veined purpli sh-bro wn; without, 
violet- flush 
branehes light blue-violet above, becoming light red-violet below 
white below; appendages light violet. blue. sharply toothed: anther- i Me 
ineluded: capsule not seen.—Swamps and marshes, S La.—Spr. 
L hexagona Walt. dn stalk rigid, erect, 8-12 dm. tall: flowers 
slightly fragrant: hypanthium covering the ovary sharply 6-angled: sepals 8-11 
curve eadin i 
a 
e rd vie than the sepals, the claw E d with green at the bas 
e blade lined in the middle at the base and with whitish edges, deep-violet 
s e: pes e ane Te green below, becoming gradually flushed lavender and 
then light-violet towards the apex, the wings and keel greenish; appendages 
1 pe ovoid or oval-ovoid, 
Swamps, ditches, and stream-beds, Coastal Plain, N Fla. to S. C.—Late spr.— 
early sum.—-A form is known in Florida with the sepal-crest ab E The 
firmness of = ve green foliage extends to the flower A pure white 
albino is kno 
86. I. alabamensis Small. Flower-stalk ar Tp ei ed zigzag: sepal 
 Spreading or recurved- in e about 9 em. v pale yellow sped 
veined olive, the veins of the wings pencilled. with dul pU the:-midrib 
e Z roun e crest e 
portion of blade red-violet at center, boron da red-li ae, the vein s also red- 
s on down into the claw, elaw-wings pinkish-lavender, flushed violet, becom- 
ing pale- ER. towards base: style-branches dull red-violet, the keel slightly 
p the wings white; appendages light violet, pos e-to othed: capsule not 
een.—Swamps, ditches, and marshes, W central Ala. —Spr. 
A I. rivularis Sm Flowers-stalks 2.5-6 oar tall, P sometimes slightly 
igzag: flowers slighty fragrant: sepals 6.5-8 em. long, arching, spreading, or 
— -spreading, the claw suffused with a he blade oval, ee blue, ex- 
cept the greenish blotch at the base, the E en crest, and the accompanying 
white flecks: petals spatulate, much shorter than the sepals, the claw greenish 
at the base, the blade longer than the claw, violet-blue: capsule oval, varying 
to somewhat ovoid or obovoid, 3.5—7 cm. long — Streams and swamps, Coastal 
Plain, N E Fla. and S E Ga. — Spr. 
