76 
A. rincrorta. Ox-eye Chamomile. __ Fig. 751. 
Stem erect, corymbose, cottony. Leaves bipinnatifid, with serrated 
segments, downy beneath. Dry fields; rare. 1-13 ft. Bienn.? July 
and Aug. Yellow. (2) #.B,1.1472. #.B.2.1181. H.& Arn. 254, 
Bab.174. Lind. 150. 
Genus 49. ACHILLEA. 
A. Prarmica. Sneeze-wort. Goose-wort. Fig. 752. 
Leaves linear-lanceolate, minutely serrated. Corymbs flat. Moist 
pastures. 1-2 ft. Perenn. July and Aug. White. (2) #. B.1. 
757. E.B.2.1182. H.& Arn. 254. Bab.175. Lind. 151. 
A. SERRATA. Fig. 753, 
Leaves linear-lanceolate, downy, deeply serrated. Corymbs nearly 
simple. Near Matlock, Derby. 1 ft. Perenn. Aug. Pale yellow. 
(2) £.B.1,2531. #. B. 2.1183. H. §& Arn. 255. Bab. 175. 
Lind. 151, 
A. Miturerouium. Yarrow. Milfoil. Fig. 754, 
Stems furrowed. Leaves bipinnatifid, hairy; segments linear. 
Pastures and way-sides; very common, 1-2 ft. Perenn. June-Aug. 
White. (2) #.B.1. 758. H#. B. 2.1184. H. § Arn. 255. Bab. 176. 
Lind. 151. 
A. TomENTOSA. Golden Milfoil. Fig. 755, 
Leaves woolly, pinnatifid ; segments linear. Dry hill-pastures ; not 
common. 6-8in. Perenn. May—Oct. Golden yellow. (4) #.B.1. 
2532. #.B.2.1185. H.& Arn. 255. Bab.175. Lind. 151. 
Genus 50. Cenraurea. 
C. Jaczea. Brown Knapweed. Fig. 756. 
Leaves linear-lanceolate ; those of the root broader. Scales of inyo- 
lucrum pinnatifid, dark brown. 2-3 ft. Perenn. Aug. and Sept. 
Bright purple. (2) #.B.1. 1678. #.B.2.1186. H.& Arn, 234 
Bab. 185. Lind. 155. 
~C. niera. Black Knapweed. Fig. 757, 
Lower leaves somewhat lyrate ; upper ovate-lanceolate. Scales of 
involucrum pectinated, black, Pastures and way-sides ; very common. 
2-3 ft. Perenn. June-Sept. Purple. (2) #.B.1. 278. HE. B.2. 
1187. H. § Arn. 235. Bab.186. Lind. 155. 
C. Cyanus. Corn-flower. Blue-bottle. Fig, 758. 
Leaves linear-lanceolate. Scales of involucrum serrated. Flowers 
radiant. Corn-fields; very common. 2-3 ft. Ann. July and Aug. 
Inner florets purple, outer brilliant blue. (2) #. B.1.277. E.B. 2. 
1188. H.§ Arn. 236. Bab. 186, Lind. 155. 
C. Scasrosa. Great Knapweed. Fig. 759. 
Leaves pinnatifid, with lanceolate segments. Flowers radiant. 
Scales of involucrum ovate, rather downy. Corn-fields and pastures. 
2-3 ft. Perenn. July and Aug. Purple. (3) #.B.1. 56. #. B. 2. 
1189. H. & Arn. 235. Bab. 186. Lind. 155. 
C. Isnarpt. Jersey Star-Thistle. Fig. 760. 
Leaves somewhat pinnatifid, the lobes spiny. Scales of involucrum 
with palmated spines. Channel Islands. 1 ft. Perenn. July and 
Aug. Pale purple. (2) E, B.1. 2256. HE. B.2.1190. H.& Arn. 
237. Bab.187, Lind. 155, 
