/O Flowers erect, segments spreading, 
/4 each with a gland at the base 
lo Flowers pendant, the segments 
/Q recurved at the tip, glandless 
C@ Plants with rootstocks which are commonly slender and 
4 trailing, trequently thickened and tuberous 
airy Sn S broad leaves ihe whorl at the summit; 
&@ fhqwers solitary in the wherl 
--Stem with Alsaves alternate or-basal , not whorledgy=_p> 
2 leaves chiefly or wholly basal 
4 Leaves 3.5-4 cm. broad; flowers 1-2 
4 Leaves 1 cme broad or less; flowers several 
§ or numerous 
G& Leaves few, 10-30 cm. long; flowers in 
/O clusters of three in a short raceme 
G Leaves very numerous, 50-80 cm. long, 
q / forming a dense tut't; flowers numerous, 
O’\\arvanged singly in an elongated raceme 
2 leaves equally distributed along the stem, not 
b basal@—<*— 
A Flants commonly as tall as a man, the leaves 
§ oval, 10-20 cm. broad or more 
4 Plants 1 m tall or less; leaves 5-6 cm. 
f broad or less 
/, 
+, Tot ielda 
2. 
+3 Xerophyl lum 
b Flowers in terminal racemes; stems unbranched 
§ Leaves 2-3, deeply cordate, petionatey_#¢spianthoaan 
12 - flower parts in 4's 
sd Flower part 
a hard t ae 
§ Leaves ewer bere miy Gomiate e, a 
& Flowers solitary or in pairs in the axils 
jo-of the leaves; stems mostly branching 
£ Flowers solitary in the axils 
f§ Flowers commonly in pairs (1-3) in the 
/Z. axils of the uppermost leaves x 
HE Streptopus 
rs Disporun 
ability 
