ee 
SYNGENESIA. SUPERFLUA. 
578. ACMELLA. Richard. 
Calix simple, leaflets few. Receptacle oblong, 
paleaceous, Seeds 4-sided, truncate at the sum- 
mit, naked. — % 
_ Herbaceous, stems mosty oe leaves opposites 
entire; peduncles solitary, 1- — axillary and termi- 
nal. Flowers yellow. Rays oblong. 
‘Species. 1. A. repens. aul repens. Mich. 2. occi- 
dentalis? Has. On the banks of the Missisippi near 
New Orleans. .Ons. Stem repent, somewhat pubescent. 
:- Leaves ovate, crenate, obsoletely S-nerved, smooth and 
petiolate; peduncle axillary and grooyed, about 3 inches 
long; rays 5 to 82; calix minute. Resembles a small Rud- 
beckia. 
; _A genus of 5 or 6 species indigenous to the warmer 
% “parts of America, not essentially HBS from a 
. either in habit or ‘character. “ 
879. ANTHEMIS. L. (Mayweed, Chamomile.) 
Calia hemispherical, subequal. Rays more 
than 5. iene 8 paleaceous; palez flat, with 
rigid acuminated points. Reppes p none or mar- : 
ginal. 
Herbaceous; ove mostly multifid; ramuli usually 1 
_ flowered; rays white or yellow, rarely wanting. 
Species. 1. A. nobilig, Common Chamomile. Natural- 
- ized near Lewistown, Delaware. 2. Cotula. May-weed. 
Introduced, but now every where a common weed 
; : wastes. 
A genus of about 35 species, almost a indige- 
nous to Sarope- 
ey 
kee 
te 
ca 
= Merhacegun, seldom suffruticose; leaves multifid or rare~ 
» ly undivided; flowers corymbose; rays white, reddish or 
yellow. 
Species. LA. Millefolium. Naturalized. 2. —. 
Upper Louisiana. Px. 3. asplenifolia, A variety of 4. Mit- 
“lefolium? 4, Ptarmica, Sastre es a to New — 
York. Pa. 
