KEY TO ISOCHILUS 
A. Flowers in a loose disti- 
chous or occasionally uni- 
lateral raceme, one or only 
a few; leaf-sheaths more 
or less verrucose 
Leaves narrowly linear, strict or somewhat erect- 
spreading; flowers small, mostly less than 8 
mm. long, one to several, commonly distichous 
. 1. Lsochilus linearis 
A A 
| 
: : 
Leaves oblong to linear-lanceo- Leaves linear, strict; flowers large, 
late, short, erect-spreading; <J-[> 1 em. or more long, commonly 
flowers about 8 mm. long, com- unilateral . es bes 
monly distichous . ... . 3. I. linearis var. unilateralis 
2. I. linearis var. carnosjflorus 
A aS 
AA. Flowers in a dense compact 
unilateral raceme, usually 
numerous; _ leaf-sheaths 
characteristically smooth 
and green-spotted or ver- 
nicose 
V V 
Leaves oblong-ligulate to ob- Leaves linear, strict, often closely 
long-lanceolate, erect-spread- appressed to the stem; leaf- 
ing; leaf-sheaths densely <J-[> sheaths commonly smooth . 
brownish verrucose . . . . 6. 1. major var. Amparoanus 
5. I. major var. alatus 
t T 
V V 
Leaves linear-lanceolate, somewhat spreading or 
occasionally strict; leaf-sheaths commonly 
smooth. . . . . 4. Lsochilus major 
[4] 
