140 
SYNGENESIA, 
N° 
Genera. 
N° of 
Growth, species. 
Species in 
Britain. 
Native of 
3d. Disc-like flowers, 
That is, placed on a surface like a disc 5 as the disc of the sun, moon, &c. 
Receptacle naked. 
51 Adenostemma 
h 
1 
32 Ageratum 
h 
2 
America 
33 Cacalia 
s & h 27 
Alps, Africa 
34 Chrysocoma 
s.& h 
13 
France, Africa 
35 Ethulia 
h 
5 
India 
36 Eupatorium 
h 
29 
Ceylon, Brazils, '&c. Brit. 1 
37 Spilanthus* 
h 
7 
Ceylon 
Receptacle chaffy. 
38 Athanasia 
s 
20 
Cape, &c. Brih 1 
39 Bidens 
h 
12 
America Brit. 3 
40 Calea 
h 
4 
Jamaica 
41 Santolina 
s 
4 
Spain, Alps 
42 Staehelina 
s 
8 
Africa 
Receptacle hairy or bristly. 
43 Pteronia s 17 Ethiopia 
44 Tarconanthus s 3 Cape 
ORDER II. 'POLYGAMIA SUPERFLUA. 
(superfluous polygamy.) 
Having the florets of the disc monoclinian , and those of the radius or circus 
ferenc t female, which are considered as superfluous* 
1st. Disc-like flowers. 
Receptacle naked. 
45 Artemisiaf s & h 29 iEthiopia, China Brit. 5 
♦The spilanthus acmella is very famous in the island of Ceylon for curing the 
stone and nephritic complaints; the leaves dried, and the seeds, are said to be most 
effectual, used by infusion; but the root, stalk, and branches are also used. 
Universal Magazine for June , 1752, p. 251# 
fThe moxa, so famous in the East for curing the gout, by cauterizing the part 
affected, is the lanugo or down of the leaves of a species of Indian mugwort (artemisia 
ehinensis).—See note to alcali, in the 'hutex. Artemisia absinthium {common 
