COMPOSITE. 59 
Sub-Genus PTA11MICA. Toumef. 
Pericline hemispherical. Florets of the ray projecting beyond 
the disk for a distance nearly equal to the length of the pericline. 
Clinanth convex or hemispherical at maturity. 
SPECIES IV.— A CHILLEA DECOLORANS. Schrad. 
Plate DCCXXIX. 
llri-h. Ic. Fl. Germ, et Helv. Vol. XVI. Tab. MXV. Fig. 1. 
A. serrata, Sm. Eog. Bot. No. 2541. 
Leaves oblong-strapshaped, serrate, the serratures acute, with a 
rather indistinct subdenticulate or entire cartilaginous margin, 
opaque, dotted, slightly hairy. Anthodes in a nearly simple 
corymb; pericline slightly woolly ; phyllaries with pale margins; 
florets of the ray 5 to 6, ochreous, the projecting part rather 
shorter than the pericline. 
Near Matlock, Derbyshire, but no doubt escaped from culti- 
vation. It has also been reported from Somerset and York. 
[England.] Perennial. Autumn. 
Stem 12 to 18 inches hi°:h. Leaves dotted with leaves in their 
m O 
axils. Anthodes J inch across, ray-florets more or less tinged with 
buif-yellow. 
A. alpina of Koch and Reichenbach appears to differ only in the 
ray-florets being white and more numerous ; but I have seen no 
specimens of that species, so do not venture to decide on its iden- 
lity with A. decolorans. 
Serrated Yarrow. 
SPECIES V. -ACHILLEA PTARMICA. Linn. 
Plate DCCXXX 
tieich. Tc. Fl. Germ, et Helv. Vol. XVI. Tab. MXVI. 
Billot, Fl. Call, et Germ. Exsicc. No. 1232. 
Ptarmica vulgaris, D. C. Prod. Vol. VI. p. 23. 
Leaves strapshaped, acute, serrulate, with distinct denticulato 
or entire cartilaginous margins, shining, subglabrous. Anthodes 
in a nearly simple corymb. Pericline slightly woolly ; phyllaries 
with reddish-brown scarious margins. Florets of the ray 8 to 12, 
white, the ligulate portion as long as the pericline. 
