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A N T H E M I S arvenfîs.
Corn Chamomile.
STNGENES IA Polygamia-fuperßua.
G en. Char, Recept. chaffy. Down none. Cal. he-
mifpherical, nearly equal. Flowers o f the radius
more than 5.'
(Spec. Char. Receptacle conical ; its fcales lanceolate,
keeled, acute. Seeds crowned with a border.
Leaves flightly hairy.
Syn. An'themis arvenfis. Linn. Sp. PL 1261. Hudf.
373. With. 7 3 7 . Hull. 188. Relh. 323. Sibth,
259. Abbot. 186. Mart. Fl. Ruß. t . j$.
Chamæmelum inodorum, Dill, in Raii Syn, 185,
A NUMBER of common plants of the Syngenejia Poly.
gamia-Juperjlua fo much refemble each other, that they com.
monly excite little attention. They have not much beauty
Jo boaft; their fmell is often difagreeable; they are noxious
weeds to the hufbandman; and the herb-gatherer is content if
he can only diftinguilh among them the valuable Chamomile
for the apothecary. Even the botanift often pafles over thefe
plants with a heedlefs undiftinguilhing eye. Their characters
however are fixed and certain, and, when examined, richly repay
our trouble, efpecially thofe found in the fructification.
Anthemis arvenjis is not one of the molt common of this tribe.
It occurs here and there in gravelly fields, or rather, as Mr.
Crowe obferves, about farm-yards and out-houfes, generally in
plenty. Mr. B. Forfter communicated our fpecimen from
Walthamftow. It is biennial, flowering in June and July,
Root fmall. Stem upright, much branched. Leaves alternate,
doubly pinnatifid, their fegments narrow and lanceolate. Soft
cottony hairs are fcattered over the whole herb, which has little
pr no fmell. Flowers terminal, with a yellow difk, which be-
pomes at length conical, and a broad white recurved radius,
Calyx woolly, its inner fcales in particular broad, and membranous
at the edge, Scales of the receptacle lanceolate, keeled
; and the feed is crowned with a quadrangular border: by
which two laft marks it is particularly diftinguilhed from the
foetid A. Cotula. From every Matricaria and Chryfanthemmq
It is kpown by the prefence of thefe fcales on the receptacle,