THE GENUS CORION OF MITCHELL. 808 
other. Whether anyone who had not seen the mature leaf could 
guess what these tiny folded leaflets would develop to I do not 
know, but I certainly think that anyone who had to devise how a 
flat Hefoil leaf could be best stowed away, would be much puzzled 
to do it as daintily as has been done by the thousands and 
thousands of tiny —_ sorrel leaves which have sprung up over 
our islam this sprin 
All th 3 Wiamestone (except 44, which is a front view) show the 
same i of the leaf, and the successive positions of each may be 
tr 
THE GENUS CORION OF MITCHELL. 
By N. L. Brirron, M.D. 
Untxss I am very much mistaken, the genus — LAgrrrers 
by Mitchell in Act. Phys. Med. Acad. Nat. Cur. viii. App. 218 (1748), 
is the same as Tissa Adans. (1768), Buda Adans. (1763), Lepigonum 
Fes (1818), and Spergularia Presl (1819). Under the tit 
‘* Nova genera planta rum Virginiensium,” Mitchell characterises 
his genus as follow 
“TV. Corron. 
Tada pentaphyllum, foliolis quinque lanceolatis, 
expan oe 
Cor tala cuhiets: oblonga, obtusa, expansa, calice majora, 
masreeeeen tin 
nti demented octo & duodecium, tenuissima inqualia, 
caduca; Anthere rotunde. 
t.—Germen ovatum: styli tres erecto-patuli; stigmati crassi- 
uscula. : 
an Bees longa ave trigona, unilocularis, trivalvis. 
Si isoatict ex partium fructificationis numero & capsule forma, 
Alsinastrum, Hee ee & alias ot rena vera separare, certe & 
hee eadem lege ab Arenaria Linn. anda est ; preesertim quum 
seis gaudeat propria ; Neriidiom forte poe docebit. 
The characters of ed sea Pers. are given as follows by 
Bentham and Hooker (Gen. Pl. i. 152): = Sepala 5. Petala 5, 
i i v 0. Stamina 10 v. abortu 
pauciora. varium 1-loculare, @-ovulatum; styli 38. Capsula 
8-valvis. Semina reniformia-globosa vy. a latera compressa, alata 
1uda.”’ 
Tt will be seen that these two descriptions are substantially the 
same, Mitchell’s being somewhat more detailed. 
