350 IXIACEAE 
a I. violilutea Alexander. Flower-stalk erect and strict: sepals 7.5-9.5 
long, recurved-spreading, the claw whitish-green, veined yellow-green, the 
blade of a dull-vi olet ground-color, the crest yellow or orange-yellow, with 1 
well developed Ed nd 2 or 3 more a ones forming a a 
triangular blotch: petals od a ap than the pu elaw 
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branches _ gre eenish, faintly Rushed cull em nder on upper portion; appendages 
pale reddish-lave nder, flushed greenish above and beneath, shallowly but finely 
lacerate-toothed: anther- -tips inclu ded: E Oe long-ellipsoid, 6.5-8 em. long, 
- 6-lobed.—Marshes and swamps, S La. 
I. oolopha Alexander.  Flower-stalk erect, strict: sepals recurved, 
ee 8 cm. long, the aay yellow, veined yellow, the blade light smoky lilac or 
pale; -violet, veined darker, the crest deep-yellow, a radial Rn tn oidal in 
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outline, formed by the Lone - median ridge cleft by rly black vein, 
a darkened Tod around the crest-apex: petals light bluish] lac or pale ae 
ender-violet, the elaw-portion eeu ed pale aaa brown and flushed 
yellow, the base yellow: style-branches red-lilac or light violet; appe ende 
deeply toothed: anther- -tips included: capsule not seen.—Sw m. "marshes and 
ditches, S La.—Spr. 
67. I. pone ay Small Flower-stalk erect, slender, stiff: sepals spread- 
ing, 8. T. que ng the elaw um -veined, ini ye ellow- -green, the blade smoky 
salmon r-flushed dull-orange and prominently veined dark ros e-brown, 
the pen nor Ens the median split cr to the base by a black- a vein, 
the first lateral on each side split by a similar vein, the radial laterals all bright- 
yellow, spotted brownish near their ati pe etals ight -salmon, flushed s pa 
pink and veined brown-orange, the three medial s black-cri imson, the clay 
orange-yellow, pencilled brown-orange: style- a dull- -salmon, flushed pin a 
ish-orange; appendages shallowly lacerate-toothed: anther- -tips slightly ex- 
serted: capsule not seen.—Swamps and marshes, S La.—Spr. 
68. I. chrysaeola Small. P Levee stout, rigid, strict: sepals 8-10 em. 
long, recurved-spreading or recurved, the claw suffused with o A a and 
intly veined, the blade oval- ovate or a much longer than aw, the 
eed violet ground-color suffused below the ae with flecks P tas of 
yellow or greenish-yellow, veined brown, and with a yellow crest: petals broadly 
spatulate, somewhat shorter than the sepals, n the lower parts of the claw 
yellowish- Leon the blade often so omewhat ‘paler than the sepal-blade: style- 
branches red-purple, the wings yellowish: appendages dull-violet, sharply 
lacerate-toothed: anther-tips included: al ellipsoid-ovoid, 7-10 em. long, 
bluntly 6-lobed.—Swamps, bayous, and ditches, S La.—Spr. 
69. I. Pn ls ccr p Flower-stalk strict, rigid, stout: flowers slightly 
fragrant: sepals 7.5-9 ong, recurved- -spreading, the elaw suffused with 
greenish-yellow and More. the blade oval, much longer than the elaw, 
dark violet-purple (plum-color), the erest- n orange-yellow surrounded by 
a greenish-yellow crest-zone, which forms a radial ae h in the base: petals 
broadly spatulate, slightly shorter than the sepals, claw mainly greenish- 
yellow, flushed red-brown at the base of the bl ade, pe slightly paler than 
the oe de and with a median brownish line: style-branches dull red- 
purple, the keel and wings greenish; appendages dull red-violet, finely and 
irregularly toothe d: anther-tips included: capsule ovoid or ellipsoid-ovoid, 
6-9 em. long, rather prominently 6-lobed.—Bayous and swamps, S La.—Spr. 
70. " callilopha RR d Flower-stalk erect, stiff: sepals recurved, 9— 
10 em. long, the clav v yellow, v veined ERN o the blade magenta-lilac 
or pontificia} purple, prominently darker-veined, with a dark brown-violet 
median band which splits the crest-median apically, the crest-median orange- 
TEN 
