66 
ANTENNA‘RIA. 
Flowering stems 4-6 inches high, with only 4 or 5~ 
flower-heads. | 
dioica. C ee ee, 
Plant 2-3 feet high, with numerous flower-heads ; (South~ 
Wales and Monmouth). 
margarita'cea.~ 
AN’THEMIS. 
The outer, radiating florets yellow; segments of the 
[ leaves toothed. } 
tincto'ria. Yellow Chamomile. 
~Outer florets white ; leaf-segments very narrow. 
a white, outer florets without any style; leaves. 
scarcely hairy. | 
( 
; Cot'ula. Stinking Mayweed? 
The white, outer florets with a style ; leaves with short ) 
hairs. J 
Scales between the florets with a fine point; flower-~ 
f heads usually over 1 inch. ; 
arven'sis. Corn Chamomile. 
\ Scales thin, bluntish ; flower-heads usually under 1~ 
inch across. ] 
nobilis. Chamomile. 
ANTIRRHI’NUM. 
Sepals narrow, tapering, nearly or quite as long as the~ 
corolla. 
Oron'tium. 
Sepals quite short, bluntish or rounded at their apex; 
corolla large. 
ee aS 
majjus. Snapdragon. 
A'PIUM. 
No bracts under any of the umbels, or groups of flower-- 
stalks, even the “ partial,’ or smaller ones. J 
graveolens. Celery. 
\ Bracts present under the partial umbels. 
All the leaves with several more or less oval, toothed 
f leaflets. } 
q nodiflo’rum. 
Lowest (submerged) leaves with thread-like segments, 
upper leaves with a few narrow leaflets. ) 
inunda/tum.~ 
