ANTENNARIA. ACHILLEA. 207 



13. (14.) ANTENNA'RIA Gaert. 



1. A. dioica (Gaert.) ; shoots procumbent, flowering st. simple 

 erect, corymb dense terminal, phyll. oblong dilated upwards 

 blunt coloured, root-/, obovate spathulate glabrous above cottony 

 beneath, stem-1. nearly equal linear-lanceolate adpressed. Gna- 

 phalium Sm. E. B. 267. St. prostrate, woody, ending in a 

 tuft of many 1. and producing prostrate leafy stoles. Flowering 

 st. 4 8 in. high, quite simple, cottony. Heads 4 5, erect, 

 slightly stalked. Phyll. white or rose-colour. /3. A. hyperborea 

 (D. Don) ; 1. cottony on both sides. E. B. S. 2640. Mountain 

 heaths. P. VI, VII. Cats-foot. E. S. I. 



*2. A. margaritdcea (R. Br.) ; st. erect corymbosely branched 

 above leafy, I. linear-lanceolate acute cottony below, heads in 

 level-topped corymbs. E. B. 2018. Anaphalis (Benth. & 

 Hook.). St. 2 3 feet high, cottony. L. alternate, slightly 

 cottony above, densely beneath. Inv. white. Fl. yellowish. 

 Moist meadows, rare. Established by rivers in Monm., Glam., 

 and Merioneth. P. VIII. E. 



Tribe VI. Anthemidece. 



Heads usually radiant, fl. of ray fern, or neuter, ligulate or 

 slender and tubular ; of disk tubular. Anth. not tailed. Style- 

 branches truncate. Pappus often wanting or crownlike, rarely 

 formed of scales or slender hairs. 



14. (22.) ACHILLE'A Linn. Yarrow. 



1. A. Ptar'mica (L.) ; /. shining linear-lanceolate attenuate 

 acute glabrous smooth uniformly and finely serrate, teeth ad- 

 pressed niucronate minutely scabrous at the margin, ray 8 12- 

 flowered equalling the involucre, corymb compound. E. B. 757. 

 R. xvi. 1024. St. about 2 feet high, slightly branched above, 

 erect, leafy, angular, smooth. Phyll. with a dark-brown mem- 

 branous margin. Limb of the radiant florets longer than broad, 

 white. Disk broad, white. L. sometimes very narrow ; lower 

 teeth not deeper than the others. Moist meadows and thickets. 

 P. VII. VIII. Sneezewort. E. S. I. 



\_A. decolorans (Schrad.) ; 1. opaque bluntish downy thickly 

 dotted coarsely and doubly serrate with spreading teeth laciniate 

 and radiating at the base, ray 5- or 6-flowered about equalling 

 the involucre. A. serrata Sm. E. B. 2531. Not known except 

 in gardens. P. IX.] 



