Blake — A Revision of the Genus Viguiera 39 
— distinctly ovate; achene sub- 
ROE a as 86. V. Lehmannit. 
MM. Involuere 5~9 mm. high, 
00. cordate and somewhat amplexi- 
at base. 111. V. 
00. Liacen narrowed at base, a clasping, 
fat igh Phyllaries ridged on pace. by the 
ckened costa; 
faci ovate or raitiince: usually 
iL sania ge a V. Pringlet. 
Leaves ovate-lanceolate, usually 
long-acumi 
2. V. Seemannii. 
PF: placer sae not ridged on back; South 
QQ. Leaves sete venulose above 
81. V. Ba Sev 
QQ. Leaves not venulose above. 
eo oo strongly spreading or 
exed; or Sonata lanceo- 

tee deeply la : 
ia 
Phyllaries seeped " sprea: eading; 
squamellae trrowly oblong, 
finely finbrint 
‘88. V. Brittonii. 
dik Involucre 2-3-seriate, RR. 
RR. I le, about 
~~ equalling the awns. 
Leaves hispid-pilose ....138. V. Hassleriana 
Laniek spareely Merial. 139. V. guaranitica. 
. Squamellae not united into a membranous scale, 
usually me free, SS. 
OS. Pagosa none: .4. 26 fees: 30. V. ovata. 
SS. Pappus secgent: leaves laciniate. 
V. lacini 
SS. Pappus present; leaves entire a dentate, TT. 

TT. Leaves 8-12 mm. long. . .40. crophy lla. 
7. ppd larger, 
UU. Heads 9 mm. wide; soe i 3.5 mm. 
Ne ke 55. Brandegei. 
UU. Heads larger (1.4-10 cm. eas. involucre 
m. high or more, VV 
VV. Slender annual.......... 53. V. tenuis. 
VV. Perennials, WW. 
WW. Phyliaries strongly indurated to 
above the middle, XX 
XX. Leaves abruptly contracted below 
the middle. 18. V.trachyphylla. 
XX. Leaves not abruptly ieented be- 
low middle. 
Sactiemoue .27. V. cordifolia. 
Frutescent. . . .39. . deltoidea. 
WW. Phyllaries not strongly indurated 
above the middle, 
YY. Involucre subcanescently hispid- 
: co. 
exi 
28. V. rhombifolia. 
