$4 CLASS XVIII. ORDER XL 



5-flowered rays, calyx-scales whitish green-tipped. 

 ']^. w .-^linarifolius^ leaves keeled dotted rough cus- 

 pidate, fastigiate, stem sub-decumbent, p. — subiUa* 

 tusy glabrous, leaves subulate, stem panicled, flow- 

 ers small many, w-b — saticifolius, glabrous, stem 

 panicled at top, calyx-scales acute with spreading 

 tips, b — novae-angliae, leaves clasping eared at 

 the base hairy, calyx-scales lax coloured lanceo- 

 late, p cyaneusi leaves clasping smooth, stem pa- 

 nicled glabrous, branches racemed, inner calyx- 

 scales with coloured tips, b — Leaves ovatish 

 ENTIRE — cornifoliusy glabrous, leaves acuminate 

 short-petioled with rough margin, w — amyg-daiinusj 

 leaves tapering to the base, margin rough, fastigi- 

 ate. w. Leaves serrate cordate — undulatus^ 

 leaves clasping, lower ones with winged petioles, 

 b — cordifolius, leaves all with winged petioles, p- 



w. Leaves serrate or toothed ovate. cO' 



rymbosusy fastigiate. w. — chinensis, (china aster) ca- 

 lyx leafy, branches 1-flowered. e. Leaves lance- 

 olate, LOWER ONES SERRATE — fiuniceusy leavcs 

 clasping, panicled — diffusus^ leaves glabrous, stem 

 hairy, much-branched, w. 



Helenium. Calyx 1 -leafed, many parted : egret 

 5 chaffy leaves : receptacle naked in the disk, chaffy 

 in the ray : florets of the ray half-3-cleft : seed vil- 

 jose. (Leaves decurrent.) 49. 55 — autumnalc, 

 (false-sunflower) leaves serrate glabrous. 1^. y. 



BoLTONiA. Calyx imbricate : egret tooth-awn- 

 ed, somewhat 2-horned : receptacle hemispherical, 

 alveolate : florets of the ray numerous : seed flat- 

 compressed, margined. 49. 55 — asteroides, (false- 

 chamomile) leaves entire, seeds oval glabrous. 2*iJ. 

 r-y. — glasti/oliaf lower leaves serrate, seeds ob- 

 cordate. 2/. r-y. 



Matricaria. Calyx flat, imbricate, scales sea- 

 nous at the margin: receptacle naked; cone-cylin- 



