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P R E N A N T H E S muraiis.
Ivy-leaved Lettuce.
S T NG E N E S IA Polygamla-aquatis.
•Gen. Char. Recept. naked. Calyx double. Down
Ample, nearly feffile. Florets-in a Angle row.
S p e c . C har. Florets Ave. Leaves runcinate.
S yn. Prenanthes muralis. jLinn. Sp. Pi. 1121. Hudf.
338. JVith. 678. Relb. 293. Sibtb. 238. Curt.
Lond.fafc. 5. t. 58.
LacSuca fylveftris murorum Aore luteo. Rail Syn.
'162.
A u t h o r s generally mention this as rather a rare plant.
Its proper ftation is in woods on a chalky foil, but it alfo occurs
on the tops of walls, growing in the mortar, efpecially on
the north fide or under the fhade of trees. The Rev. Mr.
Hemfted gathered this fpecimen on Chippenham Park wall,
Cambridgefhire, in July laft. It grows in Bifhopgate-ftreet,
Norwich.
Root perennial, of feveral long fibres. Whole herb tender
and brittle, fmooth, milky when broken. Stem a foot high,
eredt, fimple, round, purplifh, leafy ; zigzag and panicled at
the top. Leaves runcinate, that is, pinnatifid with {harp lobes
pointing backwards, toothed, veiny, darkifh green ; often pur-
plifh beneath; the radical ones on foot-ftalks j the reft alternate,
embracing the ftem. Panicle much branched, divaricated.
Bra&ese fmall, ovate, acute. Calyx Sender, purplifh. Florets
5 only, in a fimple row, by which this is at once diftinguifhed
from every other native fyngenefious plant. Seed obovate,
ftriated, black.
It varies with entire leaves on the ftem, as remarked by Dr.
Withering.
The leaves much refemble thofe of fome varieties of the S: w-
thiftle, with which alfo the plant agrees in fenfible qualities'
We know not of its being applied to any ufe.