ten) 
CLASS XIX. 
SYNGENESIA. 
‘Lins Class rp those flowers which Botanists 
ave very generally agreed to call compound. The essential 
charastieaae a Callous: FLowenr consists in the An- 
_ THERs béing united so as to form a cylinder, and a single 
SEED béing placed upon the receptacle, under each floret. 
The DanpELIon and the THISTLE are compound flowers ; 
that is, each of these flowers are composed or compounded 
of a number of small flowers, called FLORETS, 
Character of the FLowER. 
A Compounb FLower is composed of many Fiorets, sit- 
ting upon a Common Recepracte, and inclosed by 
1 Common Catyx, The 
Surface of the RECEPTACLE is either concave, flat, convex, 
yramidical, or globular. It is either, 
Nuke, that is, marked only with little dots, as in DanDE+ 
LION} Or 2 : 
iry, covered with soft upright hairs as in THISTLE; Or 
Chaffy, beset with awl-s » narrow, compressed, up- 
right, chaffy substances, separating the florets, as in 
CHAMOMILE or YARROW. | 
The Common Catyx is a Cup which surrounds the fio- 
rets and the common receptacle. (When the florets 
have blossomed it contracts ; but when the seeds are ripe 
it expands, and falls back.) It is either 
Simple, when formed with only a single row of scales or 
ves, as in GOATS-BEARD ; 
Tiled, when the scales are numerous, the outer ones gra- 
dually growing shorter, and lying upon the inner ones, 
% like the tiles upon a house, as in ARTICHOKE ; 
ou, I, 7 
