COMPOSIT. 587 
tee discoid, heterogamous ; pappus absent :—[p. 
ts of the circumference very numerous ; achenes ea or 
concave at top; flower-heads spherical or hemispherical :— 
Heads peduncled ; bracts of the involucre 1-2- seriate 
Cotul: 
Heads subsessile :— 
Bracts of the involucre 2-seriate, spreading in fruit 
: Centipeda. 
Bracts of the involucre 3-4-seriate, incurved in fruit 
pheromorpheza. 
Florets of the circumference few ; achenes obovate or rounded 
at top; flower-heads very small, in racemes or panicles 
misia. 
" {Style-arms very short, hairy or thickened towards the base, or the style 
subentire i in all the florets, which are similar and tubular to the deeply 
| mouth; anther-cells always appendaged at the apex, either sub- 
entire or cleft at the base; receptacle usually paleaceous; leaves 
ternate, corgnh oer (Cyxanome®) :-—[p. 581] 
Flower-heads wered; crowded into hea spherical balls; 
achenes ieeeiaa 4 in the straight areoles of the receptacle, silky ; 
leaves and bracts of the involucre spinescent and thistle-like 
er-heads many-flowered, separate ; achenes glabrous :— 
Achenes inserted in the straight areoles of the receptacle :-— 
Leaves and bracts of the vNetbie! “dha thistle-like ; 
pappus-hairs connate at the base into a deciduous ring -— 
Filaments free, papillose-hairy ; pappus-hairs — or 
Filaments connate, glabrous ; pappus-hairs — —— 
Leaves and bracts of the inyolucre unarmed ; ts free:— 
Pappus-hairs 1-seriate, feathery, or only 4 pd rae a outer 
ones simple ; filaments glabrous......---++++--*#1-07"" Saussurea. 
Pappus-hairs many-seriate, subpaleaceous ; filaments hairy 
Goni on. 
. inserted in the very oblique or quite lateral sera of the 
eceptacle ; leaves and bracts of the involucre spinescen 
Bracts of the involucre without any whorl of outer leaty 7 ikints 
(calycule) ; pappus many-seriate, bristly except the oaechn. 
mos 
Pt a dedksiasys sue, Cah 
a. 
_ Bracts of the involucre with a distinct what of salient, 
_ Teaty bracts at their base; pappus (in our species) wantin, ad 
rollas of all the florets flatly expanded from a tubular base (igolate); 
