A REVISION OF SALMEA 195 
q strictly discoid in Salmea and Salmeopsis, either discoid or radiate 
a (a character of no great importance in Helianthoideg) in the other 
two genera, the rays when present being usually styliferous and 
out the to pre reels ood characters. In a group of three 
discoid s pileg (Salmea curviflora, Otopappus ate and a new 
species), the disk corollas are strongly reflexed even from ane 
stage, but rae Fone le oes not seem to be properly considered 
here taken as of merely seational value. In default of eties 
grounds for separation, ore is compelled to have recourse to the 
fruit, froma which characters may be drawn which, though some- 
4 confused with Zexmenia tequilana, which possess the papp 
a corona typical of Oto 
The salient characters of these genera, with hae of their 
closest a Spilanthes, may be expressed as follows: 
Achenes bebo 
Squamelle none. 
Haba (two species frutescent) with solitary axillary 
and terminal long-peduncled heads, or these 
few in a terminal bracteate inflorescence on a 
long peduncle; achenes often callose-margined 
PILANTHES L.) 
Shrubs with numerous cymose-panicled heads ; 
achenes not callose-margined .............+- Satmea DC. 
Squamelle present, ‘sil tinaiey united to middle 
opsis Benth. 
Achenes winged, at least obliquely on the inner side above 
conflue 2 with the pappus-awns. 
Squamelle entirely abse Noroprera Urb. 
Squamelle present, ite adnat a Deo or less lacerate 
na adnate e us-awns 
pees Set kis Oropaprus Benth. 
Q 2 
