icone 
ANALYTIC KEv 95 
43. A. UMBELLIFORMIS : Å / ate with deep sinus, crenate-serrate, smooth, 
becoming thickened i in the fall and the lowest ones roughish when dry ; inflores- 
cence decompound, each branch M lower and middle bracts with 
green tips, the lowest subcoriac 
DIVISION B. GLOMERATE AND SCHREBERAN gorse Bracts highly 
aceous, chiefly pale and obtuse, with green tip and midrib 
Pie SION A. GLOMERATE ASTERS. Inflorescence rather dense, 
quite regular, not very large ; radical colonies not very conspicuous. 
* Bracts glabrate, but little ciliate, acutish or attenuate-obtuse ; teeth 
close, sharp, outflung ; leaves almost glabrate. 
44. A. EXACUTUS: ower large leaves few, acuminately-serrate, triangular or with 
rounded base; other leaves numerous, long, sessile, serrulate, elliptic- PAK. 
heads small, 4 inch high; pits branches slenderly fastigiate. 
45. A. ERIENSIS: leaves oval-acute, very firm, slit-serrate; axiles conspicuous; rays 
longer than in the next, often reddening ; inflorescence convex, close; lower 
bracts acutish. 
** Bracts ciliate; teeth of crenate-serrate type; heads in a domed mass, 
compact ; texture coarse and 
46. A. GLOMERATUS : leaves orbicular- Pd firm, rough, Phim pc eau with 
broad deep pu pilose beneath ; rays E heads short, often subsessile ; 
bracts — w plants, branching at a w gle. 
* Bracts ciliate ; teeth of crenate-serrate type ; heads doti into a 
igh-convex or cylindric mass; texture coarse and t 
47. A. JULIANUS: leaves ovate-acute, crenate-serrate, with broad inis sinus and 
scanty hair, drying smooth or roughish; bracts obtuse, the inner narrow ; ta 
plants, iugis at an acute angle 
SusBDIvIsoN B. SCH REBERAN ASTERS.  Inflorescence looser, more 
‘eae ; rather flattish-topped ; texture firm; radical colonies usually 
very conspicuous; plants larger. 
* Radical leaves large, in extensive colonies, thin, very broadly cordate. 
f Narrow petioles (of radicals) long, ciliate; middle petioles winged ; 
upper caulines broadly sessile; radical leaves ovate- licit 
extremely large and thin, crenate, apple-green 
48. A. LIMICOLA: cauline Zeaves chiefly ovate, middle ones CS sinus, with 
pie and heads small, K in. high; inflorescence-branches short, 
482, ME. form : leaves small, dark, broadly ovate-deltoid. 
tt Narrow petioles continuous up nearly or quite to the branches. 
|| Radical leaves reniform, or deltoid-orbicular, large, thick, roughish. 
49. A. bi pug most cauline /eaves broadest mea? dhe base, curvescent-serrate ; 
brac ick, obtuse; heads large, about !4 in. high. 
49?. T tibi form all leaves broadly reniform 
MI Radical eei id ree mode ee stem tall, robust. 
50. A, RECTIFOLIUS : t straight-stded, crenate, acute, 
deep broad sinus; sci winged ; leaves sigs ; beads smaller, about 
7s in. high; s about 1 cts o sige a and rigid. 
51. A. AMNICOLA : Tn: omen slant-sided, som t triangular-elongate and 
falcate, curvescent-toothed, narrow sinus, soft and thinnish, erre be. 
ne ; rays about I4, very uc often olivaceous; head ut 45. in. high; 
bracts acute, the inner attenuate and scarious, much as in p poe 
