[Vor. 5 
38 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
tt Leaves not at all lyrate; 
achenes hirtellous or gla- 
bro 
0.  Асћепев hirtellous.100. 8. oresbius 
enes a .101. 8. На тапи 
** Leaf- blade ans or quit 
long as broad... s су = 02. WS. bernardinus 
П. Stems tending to be more uniformly 
leafy; leaves subentire to sharply 
dentate. 
1. Plants = New Mexico; achenes 
ШАГ 22005 2 103. S.eurypterus 
2. сани of cese and New Mexico; 
ee hirtellong =, ора 104. S.mutabilis 
B. Stems 1 io = da m. high; leaves slightly den- 
tate to sinuately subbipinnate with dee 
d inuses ly 
tems 
== TFE offalioota. со. шох 105. S.Fendleri 
ү. Stems .5 to 1.5 dm. high; leaves not at all 
n entire or dentate towards = apex. 
I. Leaves rotund-ovate to spatul 
achenes glabrous or very meni hir- 
3. ‘Plants of the Sierra Nevada Moun- 
SE e uu за ут Para 106. S.Muirü 
2. Plants of the Rocky Mountains. 
ма! -blade nearly as broad а 
Е ends radiate Во шз кт 107. S.sacosus 
її нала 5 2 107a. var. toiyabensis 
zT V rat blade pes much longer 5 
than broad. 
+ Hea ie. et 108. 8. PN ны: 
Heads subdiseoid ......... 08a. var. incertu 
IL Leaves ses сз поети AEG 109. S.Thurberi 
B. Plants at first tomentos ore la- 
r less gla 
brate especially on the i net Пеа{шїасе; inflor- 
escence one to few-headed; heads 12 to 20 mm. 
igh. 
a. та thick in texture; rays pale yellow. 
argin not revolute. 
I. Involucral bracts 10-13 mm. long....110. 8. Actinella 
T Тон bracts 7-8 mm. long....... 111. S.molinarius 
f-margin strongly revolu B xc ri 112. S.gerberaefolius 
b. Leaves thin in texture; rays deep orange...... 113. 8.бтеепе 
Plants mostly permanently white-tomentose; in- 
florescence several-headed; heads 10 to 12 mm. 
igh. 
а. Pubescence subappressed-sericeous............ 114. S.convallium 
b. Miri mures white floccose-lanate. 
most leaves obovate to ovate, not at 
all эв E 115. 8. Leonardii 
B. Lowermost leaves ovate to oblong-lanceo- 
ate, асана liy subcoordate.......... 116. 8. tomentosus 
Lowermost leaves obovate to oblanceolate, 
not at o € 
E = 1 to 5 dm. high; leaves chiefly 
asal (except in 8. Harbourüi). 
