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S E N E C I 0 lividus.
Green-scaled Groundsel.
SYNGENESIA Polygamiu-superflua.
Gen, Char, Recept, naked. Down simple. Cal.
cylindrical, many-leaved, equal, scaly at the base;
scales dead at the tip.
Spec. Char, Radius revolute. Leaves clasping the
stem, lanceolate, pinnatifid and toothed. Scales
of the calyx short; their points acute, and not
discoloured.
S yn , Senecio lividus. Linn. Sp. PL 1 2 1 6 . Willd,
Sp. PI. v .3 . 1983.
S. corollis revolutis, foliis amplexicaulibus lanceolatis
dentatis, squamis calycinis brevissjmis intactis,
Linn. Horl. Ups. 261.
Jacobsea annua, senecionis folio, fceniculi odore.
Till. Pis. 86. t. 28 ƒ. 2,
T h is new British plant was discovered in October, 1812, by
W. Middleton, Esq., on some newly enclosed moor land at Snea-,
ton, near Whitby, Yorkshire, and no one can withhold from its
finder the praise of great accuracy of observation. Its appearance
is most like S. sylvciticus, t. 748, but the essential and
all-sufficient marks of distinction are the dilated base of the
leaves, which embraces the stem, and the taper-pointed scales at
the base of the calyx, which are not blackened and abrupt at
the tip, as in perhaps every other Senecio ; so that it in some
measure wanders from the generic character. By the Linnaean
herbarium we find this species varying very much in the depth of
the segments of its leaves. Mr. Middleton observes that the
florets of the radius are not at first revolute, but gradually become
sp. The seeds of this plant, as welj as of S. squalidus, t, 600,
were sent to Linnaeus by Dillenius, An Italian specimen, from
Arduino, helps us to the synonym of Tilli.