IXIACEAE 345 
41. I. bifurcata Small. dial xe erect, stiff, strict: flowers slightly rose- 
scented: sepals 9-10.5 cm. long, recurved, the claw suffused and lined with 
green, deeper in the middle, the blade oval-ovate, of a ais blue ground-color, 
very prominently dark-veined, with a narrow lemon ateral near the base of the 
meadow 
49. I. rubrolilacina Alexander.  Flower-stalk erect, rigid and strict 
the sepal-blades: style-branches heavily streaked and flushed pale-orange, the 
keel pale-orange: anther-tips included: capsule not seen BOSSES s and marshes, 
S pis 
43. viridis E gos stalk erect, strict: flowers slightly musk- 
Ru ue als 7.5-8.5 em. long, wide- spreadin g, the claw suffused with 
pale yellowish-green, ane yellow green, the blade violet, the crest and its 2 
r 3 contiguous laterals forming a lancehead of bright greenish-yellow: petals 
spatulate, somewhat shorter than the. sepals, the claw suffused with green and 
i th 7 
"cin d 6-lobed.—Marshes and bayou-banks, S La.—A species with very free- 
plants, the sepals not WAYS spreading out full, "but the brilliant 
violet. color gives a pleasing e ect. 
I. citriviola Small. . Flower-stalk erect, rigid and strict: sepals recurved- 
b. within, the claw greenish-white veined yellow-green, its wings lightly 
peneilled red-violet, t the blade royal-purple, the crest brilliant lemon, with one 
or two l f same color, all outlined deep ; elaw-veins becoming 
brown a aw; without the blade light silvery-violet, overlain silvery 
the erest and claw yellow-green same e blades, within, 
flushed lavender law portion, without, the claw flushing pale silvery- 
green style-branches dull light-violet, fading paler and more greenish at base, 
e wings white; appendages light-violet, flushed lavender beneath, erose- 
toothed: anther- -tips included: capsule not seen.—Swamps, marshes, ditches, and 
bayou-banks, S La.—Sspr. 
45. I. iodantha Alexander. Flower-stalk erect, stout, rigid: sepals recurved, 
within, the elaw greenish-yellow, bengal tie en veined, the v veins becoming black- 
purple at on of blade, claw-wings my, margined dark-lavender, the veins 
brown-flecked, the blade rich, briliant-violot, the erest dark-lemon, with 2 short 
laterals, the first lemon, the 'second pale-lemon, barely extend into the base of 
he blade and all outlined with black-purple; without, the crest-region overlain 
ereamy gree ~ the claw light yellow-green, streaked purplish: petals 
f ue 
same color sepal-blade, except lower part o ade flushed Md the 
claw crea ed-lilac streaked; , claw and 1 part of 
rae aged Bue pl rn dul red violet Nc cm p 
ing below, w argin ds a P Dp dages violet, 
exserted : pens i seen.—Swam mps s and ud S La. 
46. I. gentiliana Alexander. Flower-stalk erect, stout and rigid: sepals 
recurved, within, the claw pale whitish-green, veined yellow-green, the blade 
