COMPOSITE. 43 
Section II.— PYKETHRUM. Linn. • 
Anthodes corymbose. Pericline hemispherical. Clinanth he- 
mispherical in fruit. 
SPECIES III.— CHRYSANTHEMUM PARTHENIUM. 
Pers. 
Plate DCCXV. 
'l Ic. Fl. Germ, et Helv. Vol. XVI. Tab. CMXCII. Fig. 2. 
Billot, Fl. Gall, et Germ. Exsicc. No. 28G3. 
Tanacetum Parfchenium, C. II. ScUultz, liber die Tanacet. p. 55. Reich, jib 1. c, p. 52. 
Leucanthemum Parthenium, Or. & Godr. Fl. de Fr. Vol. IT. p. 1 [5. 
Pyrethrum Parthenium, Sm. Eng. Bot. No. 1231. Fries, Sum. Veg. Scand. p. 1. 
Matricaria Parthenium, Linn. Bab. Man. Brit. Bot. ed. v. p. 178. Hook. &, Am. Brit. 
Fl. ed. viii. p. 57. 
Leaves pinnate, with 3 or 4 pair of pinme ; leaflets ovate, 
deeply pinnatifid or bipinnatifid ; all the leaves except the upper- 
most ones (which are bitripinnatifid) stalked, finely pubescent. 
Anthodes corymbose, radiant. Pericline hemispherical ; phyllarics 
with a blunt keel on the back, the exterior ones lanceolate, with 
the margins narrowly-scarious and pale ; the inner ones oblong- 
strapshaped, white, scarious and lacerated at the summit. Florets 
of the ray short, flat, white, but much longer than the pericline. 
Achenes cylindrical-prismatic, enlarged upwards, equally 5-ribbed. 
In hedge-banks and waste places. Common, and generally dis- 
tributed, though possibly originally introduced, becoming scarce 
in Scotland. 
England, Scotland, Ireland. Perennial. Late Summer 
and Autumn. 
Pootstock not creeping. Stem 1 to 2 feet high, copiously pani- 
culately branched in the upper half, sparingly downy. Anthodes 
(including the ray) \ to f inch across. Phyllaries more curved 
upwards than in the preceding species, and with a very strong cen- 
tral rib, and destitute of the brown margins of the two first species. 
Ray-florets shorter than the diameter of the disk. Achenes small, 
whitish, sub-pentagonal, all crowned with a membranous border at 
the summit. Plant green ; leaves thin, finely downy, especially 
upon the petioles ; phyllaries slightly downy on the exterior. 
Common Feverfew. 
French, Chrysanthcme Matricaire. German, Mutterhraut. 
This plant is so like the Chinese Chrysanthemum, that by some botanists it is scarcely 
distinguished from it ; indeed a double variety with all white flowers is commonly 
