Rte eT Pee Fe) OL ane A 
55c. 
S 
ANALYTIC KEY 97 
sinus; inflorescence deep-branched, floriferous; roughness extreme, but hair 
scanty ; plants in sunny cleari 
A. MACR. SEJUNCTUS: Zeaves soft, more hairy, both sides rough and — when 
dr he lower cordate-ovate ; stem hairy ; plants subsolitary, in gras 
we 
Lad 
ry; 
. A, MACR, VELUTINUS: leaves smaller, firmer, closely short-pubescent p 
cuminate 
. A. MACR. PINGUIFOLIUS: eaves broad-cordate, greasy, often very large and sub- 
orbicular; Zar almost absent; inflorescence wide-branched; heads larger, 
er. 
** Plants taller, smooth and glabrous, with convex or diffuse inflor- 
escence ; bracts lingual, acutish. 
A, EXCELSIOR : /eaves nid many cordate-oblong, smooth; sinus deep, broad ; 
hair — absent; stem purple-red or glaucescent, tall. 
* Plants decal with compact bunch-top inflorescence; bracts lingual, 
obtusish. 
A. ORBICULARIS: Zeaves small and numerous, cordate-suborbicular to oval-oblong ; 
sinus strong and deep, often zarro:w ; veins pale, strongly rectangular; plant 
apt to be rough-pubescent and leaves strongly apiculate. 
A. BIFORMIS : leaves few and small, cordate-oval, acutish, close-crenate,; sinus 
deep, narrow; plant glabrate. Little leaves of a new type abruptly succeed 
the few lower characteristic leaves 
SUBDIVIsION B. LEAVES firmer and less polymorphous than in A; strong- 
serrate, but the teeth not very deep; stem strong but a ge 
some strigose hair ; plants usually glandular all over when young 
* Plants not tall, with convex inflorescence; chief bracts eae heads. 
lavender. 
A. UNIFORMIS : eaves thinnish, broad, of deltiform type, abruptly short-acumi- 
nate, the middle ones long-acuminate ; Teak lavender, paling soon, with a deli- 
y 
A. ALLEGHANIENSIS : leaves thicker, less broad, of ovate type, broad-based, few 
cordated, greatly reduced upward; plant strict, low ; heads lavender and pink, 
nsely narrow-bunched. 
A. SABULOSUS : Zeaves thicker, ovate acuminate with cuneate wing, few cordated, 
all small but sof greatly reduced upward; plant stiff, low; leaves erectish ; 
heads densely shallow-bunched. 
A. QUADRATUS: Pus thickish, of quadrate type, with slight broad sinus; the 
radical suborbicular and ovate, with deep sinus; plant strict, low ; heads laven- 
der or when dry of a leaden-blu 
** Prants be with jane convex inflorescence iue or soon becoming 
ffuse (64) ; chief bracts lingual, rounded 
A. DENSATUS : Mid thinnish, firm, of orbicular type, slowly a he upward in 
size and shape ; plant rough-pubescent, with intermixed capitate glands all over. 
A. ROSCIDUS: spits thickish, firm, of quadrate type, with sudden broad obtuse 
apiculation; much smaller and round-oval above; plants densely covered with 
viscid cepit zem all over, at least while young; more glandular and less 
sc e last; rays more lila 
SUBDIVISION c. LEAVES thinner, ab doubly-serrate ; plant low, with 
strigose hair. 
A. FEROX: radical leaves very large and asymmetrical; caulines small, chiefly 
slender and petioled ; from doubly-serrate below to entire above; heads pale, 
diffuse. 
