336 IXIACEAE 
Crest-zone yellow as well = ET then 
a ned white: perianth not markedly 
ny. 
CRE us eolor extending upwards from 
the 
Grest zone sharply demarked, not over- 
flushed with darker color, and un 
spott 
Crest yellow or orange, separated 
i or (e sepal color by a zone 
White D completely surround- 
ing the sepal-crest, and streaked 
a ns flecked into the sepal blade 
color. 
White zone only at base of crest 
and streaked Mri ped into 
the sepal-blade: the crest me- 
dian extending “into the blade 
with ony 2 dark outline and 
ot paler zone, 
Crest lemon oe Sellos with a pale- 
edo ow or Ds -lemon zone, but 
white zo 
Crest extending. '15 or 
length of the sepa. blade, 
the n ridge not mark- 
Perianth red-violet : sepal- 
pale-yellow crest-zone. 
Perianth violet, or violet 
blue; E lemon with 
ae 
pale- 3 
Great” B Hd full ló way 
own the sepal- blade, the me- 
dian ridge very markedly 
raise 
Crest-zone not at all demarked, over- 
dr with darker color, and hea vily 
Spo 
Cr sidus ee only on o ode not 
tending upwards from cla 
Sepal-blade in claw of equal length. 
: IX. HEXAGONAE 
Stem flower-bearing on the upper part, erect: sepal-blade 
oval. 
Style-appendages half-o ovate: claw of the BEDA! coer 
treaks extending into the lower third of 
' the blade: perianth rich-violet. 
Crest of the sepal accompanied near the base of 
ee blade with a narrow zone of yellow streaks, 
it 
violet-blue. 
Style-appendages lanceolate: claw of the sepal deep- 
without : foliage deep-green. 
Stem flower-bea ring from near the base, decumbent or 
pro 
ate. 
Petals with long, slender claws: plants with long, 
iod pn which usually lie on the ground at 
Petals "with. “sho rt, broad claws: plants with rela- 
Sepal- blade ovate; crest- median extending beyond 
the white zone 
he blade orbicular- -ovate; crest-median exceeded 
PRISMATICAE 
Very slender gregarious plants with grass-like leaves, the 
brightly variegated sepals with slender claws: rootstock 
wiry, with brown scales, 
-1 
78 I. 
-1 
co 
A 
81. I. 
00 O0 
Co 
On 
a ds 
ae 
AA 
-€— 
85. I. 
88. I. 
I. 
giganticaerulea. 
paludicola. 
Wherryana. 
citricristata. 
alticristata. 
aurilinea. 
fluvi 
a IER 
hexagona. 
. alabamensis. 
. rivularis. 
foliosa. 
brevipes. 
. mississippiensis. 
prismatica. 
7 Ce ne a hd 
