SYNGEN. POLYGAM. /EftUALi. 239 



HAB. Banks of rivers and lakes, not unfrequent. In Clifton-ings 

 and among rocks below Kinghorne, Dr. Parsons. Laswade, Mr. 

 I). Stewart. Appin, Capt. Carmichael. Rare about Glasg.j marshy 

 place in Carmyle wood, abundant, Hopk. Fl. Aug. . 



Stems 3 4 feet high, branched. Leaves pubescent, their middle lobe 

 the longest. Flowers very numerous, thickly crowded in terminal 

 corymbs of a pale reddish purple. Style longer than the cor., deeply 

 cleft. Plant slightly aromatic. 



2. POLYGAMIA SUPEBFLUA. 



21. TANACETUM. 



* DISCOIDEI. Corollas of the ray obsolete. 



1. T. vulgar e (common Tansy), leaves bipinnatifid inciso-ser- 

 rate. Laghtf.p. 465. E. B. t. 1229. 



HAB. Borders of fields and road-sides, not uncommon, especially about 



Glasg. FL Aug. I/ . 

 Stems 1 3 feet high, erect, slightly branched. Flowers yellow, in a 



terminal corymb. Florets of the ray very few, ligulate, tridentate. 



Whole plant very bitter and aromatic. It has been much used for 



medicine, and also in domestic economy as an ingredient of puddings. 



22. ARTEMISIA. 



1. A. marllima (diooping-flowered Sea Wbrmivood), " leaves 

 downy pinnated the uppermost undivided, racemes drooping, 

 receptacle naked, flowers oblong sessile," Sm. Lightf. p. 466. 

 E. B. t. 1706. 



HAB. Sea-shore, but not very common : as upon the coast by Guillon 

 Loch, Dr. Parsons. Banks of the Peffer burn, near Aberlady, and 

 on the coast of Galloway at St. Mary's isle, Maugh. FL Sept. 7/ . 



One foot high, clothed with soft, white, cottony down. Leaflets 3-cleft, 

 their segments linear. Flowers small ; involucre woolly. Flowers 

 of the ray very few, sometimes 0. 



2. A.gallica (upright -flowered Sea Wormwood), " leaves downy 

 pinnated radical ones capillary upper ones undivided, racemes 

 erect, receptacle naked, flowers oblong/' Sm. E. B. t. 1001 

 (A. maritime). 



HAB. At Peffer burn and at St. Mary's isle, with the preceding, Maugh. 



Rocks on the coast near Arbroath, Mr. D. Don. Fl. Sept. 7/ . 

 " Distinguished by having its flowers drooping, which character seems 



constant j and accompanied by differences in the general habit of 



the plant." Sm. 



3. A. Absinthium (common Wormwood) , leaves bi-tripinnatifid 

 clothed with short silky clown, segments lanceolate, flowers 

 hemispherical drooping receptacle hairy. Lighlf. p. 467. 

 E.B. t. 1230. 



HAB. Waste places and way-sides, as about Aberlady and Queens- 

 ferry, &c., Dr. Parsons. FL Aug. 3/ . 

 One to one foot and a half, or more, in height, striated, branched. 



