the bottom, and containing a fingle piftll- 
lum. You now detach fome of the yellow- 
florets which compofe the difkj each of 
thefe you will difcover to be a perfect tu- 
bular flower, containing $Jlamina and one 
pijlillum. Now as each of thefe florets of 
the difk is provided with the male and fe- 
male organs of generation neceffary to the 
production of feed, \\\z pijlillum in the radii 
is fuperfluousj which circumftance deter- 
mines the Order to which it belongs, viz. 
Poly garni a fuperfua-y and that it is of the Clafs 
Syngenefia is evident, becaufe the flower con- 
fifts of a number of florets comprifed within 
one calyx, which is the general charafterif- 
tic of that clafs. You are alfo to obferve, 
that, in this clafs, thejtamina are united at 
their extremities, fo as to form a cylinder; 
and that, at the bottom of each floret, there 
is a fingle feed placed on the receptaculum* 
For the meaning of thefe and other techni- 
cal terms, I muft refer you 'to your Clavis*, 
where I have explained them according to 
what I conceive to be the Linnaean accepta- 
tion. 
I need 
* Clavh Anglica Lingua Botanica^ or a Botanical Lexl- 
coV) &c. the firft edition of which I publifhed when I was 
a ftudent of Medicine at Edinburgh. It was originally 
written for my own ufe, and republifhed laft year. 
