COMPOSITE. 59 



Sub-Genus PTAEMICA. Tournef. 



Pcricline 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.— ACHILLEA DECOLORANS. Schrad. 



Plate DCCXXIX. 



Keich. Ic. Fl. Germ, et Helv. Vol. XVI. Tab. MXV. Fig. 1. 

 A. serrata, Sm. Eng. Bot. No. 2541. 



Leaves oblong-strapshaped, serrate, the serratures acute, with a 

 rather indistinct sub denticulate 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 high. Leaves dotted with leaves in their 

 axils. Anthodes \ inch across, ray-florets more or less tinged with 

 butf-yellow. 



A. alpina of Koch and Reichenbach appears to difier 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- 

 tity with A. decolorans. 



Serrated Yanvw. 



SPECIES V. -ACHILLEA PTARMICA. Linn. 



Plate DCCXXX. 



Reich. Ic. Fl. Germ, et Helv. Vol. XVI. Tab. IiIXVI. 

 BUIot, Fl. Gall, et Germ. Exsicc. No. 1232. 

 Ptarmica vulgaris, D. C. Prod. Vol. VI. p. 23. 



Leaves strapsliaped, acute, serrulate, with distinct denticulate 

 or entire cartilaginous margins, shining, subglabrous. Anthodes 

 in a nearly simple corymb. Pericline slightly woolly ; phyllaries 

 M'ith reddish-brown scarious margins. Florets of the ray 8 to 12, 

 white, the ligulate portion as long as the pericline. 



