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Now pull me a good fpecimen of Cham- 
that umbelliferous plant with white PW um ' 
flowers, that feems to thrive fo well 
under thefe elms. I have no diffi- 
culty in telling you its name, without 
examination, becaufe I know there 
is no other plant of that kind yet in 
flower. It is the Cbterophyllum fyl- 
veftre, Cow-parfley or wild Cicely, of 
the Clafs Pentandria and Order Z)/- 
gynia, which Order comprehends, 
though not exclufively, the Umbetti- 
Jer& of Ray and Tournefort. You 
perceive what is meant by Umbelli- 
fera. The flowers, you obferve, grow 
at the end of fpokes, or radii, pro- 
ceeding from a common centre, each 
of which centres refts on the extre- 
mity of another fpoke, alfo proceed- 
ing from a general centre; fo that it 
forms a large or general umbel, or 
umbrella, with a fmall one at the 
extremity of each radius or rib. The 
fmall leaves furrounding the root of -^ 
the umbel, are called the involucrum: 
in the prefent inflance, it belongs to 
the fmall or partial umbel only, the 
general umbel having none. The 
pre- 
