352 COMPOSIT 
the disk-flowers hermaphrodite and fertile, rarely some i ; ; 
regular 4-5-toothed tubular seule See: rodae abbey 
Bracts of the involucre herbaceous or membranaceous, not scarious. 
Style-branches of the hermaphrodite flowers with either truncate or 
appendiculate tips. Pappus paleaceous or aristiform, or sometimes 
plurisetose, but the bristles when capillary always more or less rigid 
SUBTRIBE I J AUMIEE Involucre of broad bracts, imbricated in 
two or more series. 
58 Jaumea Involucre campanulate: leaves opposite 
narrow, fleshy. ‘eaves opposite, connate at base, 
SuBTRIBE 11 HELENIEZ Involucre hardly at all imbricated: 
its bracts when broad nearly equal or in a single series. 
* Achenes linear or linear-cuneate, 4-angled or ¢ 
with cartilaginous margins. : sd ompressed, but not 
+ Receptacle conical or convex, rarely flat:. involu 
eral erect appressed or united herbaceous bracts. re. OF fo Wor aay 
++ Rays few, very short and included, rarely conspicuous, or none. 
59 Lasthenia Receptacle conical: bracts of the i siaaea 2 
10-15-toothed cup: pappus none. involuere united into a 
++ ++ Rays exserted and spreading. 
60 Baeria Receptacle high-conical, minutely muricate: ; 
volucre distinct, flat, in a single series. d ate: bracts of the in- 
61 Eriophyllum Receptacle flat to conical: involucre many- ; 
bracts strictly erect, not membranaceous, more or less eunateoeee 
in fruit and partly embracing the subtending achene: pappus of nervy e 
less and mostly pointless pales. - 
62 Bahia Receptacle small, mostly flat; involucre 12-20- : 
tice not gts he nor and ag daa! plain or Dis posits Pn 
embracing achenes: pappus of several scariou i , 
thickened opaque base. 8 palez with callous- 
63 Hymenopappus Receptacle flat: Involucre many-fic boat 
mostly appressed, with scarious-membranaceous and usually eoreet 
tips: pappus of 10-20 mostly hyaline obtuse pales. - 
+ + Receptacle flat: bracts of the involucre narrow, chiefly linear 
++ Heads with regular ligulate and pistillate rays 
64 Rigiopappus Involucre campanulate, rather many-fl : 
short an Ticinapicnods! pappus of 4-5 rigid ralaahene palin rays 
++ + Rays wanting but the marginal corollas sometimes enlarged 
65 Chenactis Involucre campanulate or hemispherical ; 
hyaline scales, rarely wanting. pherica!<pappus of blunt 
4+ ++ ++ Ray-flowers ligulate and pistillate, mostly conspicuous. 
66 Hulsea Involucre hemispherical, very many-flowered, of ve 
nz, crous linear bracts : pappus of 4short hyaline blunt and pabaalene alae 
* * Achenes turbinate or obpyramidal: disk-flowers all fertile. 
+ Inyolucre bracts erect or appressed: achenes hirsute or villous, 
