—— — 
Hy season en 
ANALYTIC KEY 91 
6. <A. ERECTUS: leaves ovate or lanceolate, incurved-acuminate; many couchant 
teeth ; sinus broad, shallow; bracts narrow ; rays thickish, remaining a long 
time cut: heads rather € e, close. 
7. A. FIMBRIATUS : Zeaves longer ; large couchant teeth ; broad-brace sinus; broader 
bracts; many il rays 
xXx p * Aa Bh 11 d dg d; + ih HT , sharp 
8. A. FRAGRANS : Zeaves lanceolate peu a broad base, very yr sinus sha llow ; 
heads loosely massed, delicately fragrant ; pedicels long; éract-margins white 
or pinkish. 
9. <A. EXCAVATUS: Zeaves oblong-lanceolate; sinus narrow, deep and enlarged 
within ; most bracts thin and pale 
* Bracts more uniform, with dark broad rounded tips; teeth few or 
w on the upper leaves. 
IO. A, SUBINTEGER: dark and slender; “eaves /amee-triamgular ; heads few, 
divergent 
* Bracts triangular-acutish ; teeth of slit-serrate type. 
II. A. SEXTILIS : low, early ; leaves oblong-lanceolate, closely slit-serrate, often cau- 
date ; sinus slight ; heads sma 
SuppIvision B. STEM weak or decumbent. 
12. A. STILETTIFORMIS : /eaves long, narrow, linear-oblong, straight-acuminate ; close 
straight-backed teeth ; but little sinus or petiole ; lingual bracts. 
123. Dentifolial form : leaves delicate, more oblong and cuneate-based. 
124, Jag-edge form: leaves heavier ; teeth irregular, some of them reflexed. 
I3. A. PARTHIANUS: leaves ovate-lanceolate, incurve-acuminate, serrulate; many 
eflexed ; little sinus; short narrow petioles ; bracts narrow, many obtuse. 
I4. A. CAMPTILIS : leaves oblong-acuminate, ese; winged petioles common ; bracts 
uniform, subacute ; inflorescence flattish 
15. A. BOYKINII : Jeaves oblong- or ovate-acuminate, st ly serrate; narrow petioles 
common; bracts multiform ; impiis lax and exitu. 
I6. A. FLEXILIS : ar, ovate-acute, go short narrow petioles common ; sinus 
narrow ; bracts uniform, narrow 
Division B. CARMESINE peng “‘Thinnish firmer leaves of shorter types. 
Disks senec n to a more definite red or finally to a deep crimson. 
Stem ere dice or wandlike. 
koci A: LOWER BRACTS acutish. 
17. A. ARCIFOLIUS: wide-branching; /eaves short-ovate, acutish ; with órace-base 
Sinus, very -— and shallow. 
I8. A. CAPILLARIS : high-bran iie ; leaves ovate- or oval-acute ; sinus moderate ; 
pedicels imd lied? kon ; rays long ; erect upon rocky slopes. 
SUBDIVISION B. CH y BRACIS obtuse or chanfer, diverse. 
I9. A. VIRGULARIS : little ic. leaves ovate-acuminate to oblong-acuminate ; sinus 
sharp; close sharp ou i 
I9?. Tangle-tuft form : teeth coarser, fewer ; long entangled pedicels. 
19%. Linear-oblong form: teeth slight, remote; many upper leaves deflexed, narrow 
oblong. 
19t. Crimson-tassel form: leaves verging toward A. divaricatus; rays short; disks 
igh, deep crimson. 
19. 7i iiiar form : leaves triangular-lanceolate ; rays twisted near the base. 
20. A. RUPICOLA: Mies small, firm, rough when dry, ly ovate-acuminate, spike- 
toothed ; sinus large, broad ; veins prominent, upcurved. 
