180 



The Flora of Wiltshire. 



2. B. cernua, (Linn.) nodding Bur-marigold, cernuus (Lat.) 

 signifies nodding, or hanging the head ; in allusion to the drooping 

 inflorescence of the plant. Engl. Bot. t. 1114. Reich. Icones. xvi. 

 941. 



Locality. In similar situations to the foregoing but much more 

 rarely distributed. A. Fl. August, September. Area, 1. 2. 3. 4. 5, 

 Flowers rather large, yellow, always drooping. Some very interest- 

 ing remarks relative to the British species of Bidens, may be seen 

 in Dr. Johnson's admirable Flora of Berwick-upon-Tweed. V. ii. 

 p. 287. 



Achillea (Linn.) Yarrow Milfoil. 

 Linn. CI. xix. Ord. ii. 

 So named because its healing virtues were said to be first dis- 

 covered by Achilles. 



1. A. Ptarmica, (Linn.) Sneeze-wort; from ptarmike, a plant, 

 which causes to sneeze. The leaves have a slight pungent odour, 

 and when dried and powdered have formerly been used to excite 

 sneezing, whence the English name. Engl. Bot. t. 757. Reich. 

 Icones, xvi. 1024. 



Locality. In moist meadows, pastures, thickets, and damp 

 heathy places. P. Fl. July, August. Area, 1. 2. 3. 4. 5. 



South Division. 



1. South-east District, "Meadows near Laverstock " Dr. Maton, 

 " Nat. Hist. Wilts" " Amesbury " Dr. Southby. " Neighbourhood of 

 Salisbury, "Mr James Hussey." 



2. South Middle District, " Stratford," Dr. Maton. 



3. South-west District, " Kilmington," Miss Selwyn. " "War- 

 minster," Mr. R. C. Griffith. 



North Division. 



4. North-west District, Banks of the Kennet and Avon Canal, 

 " River-side at Lacock and Chippenham, Dr. Alexander Prior. 



5. North-east District, Wilts and Berks Canal, between Swindon, 

 and Cricklade. Damp meadows near Marston Meysey. 



Not common in any of the above mentioned localities. Stem 1 to 

 3 feet high, erect terminating in a rather large corymb, the disk 

 as well as the ray of whose flowers is white. 



