SVNGENESIA— POLYGAMIA-.EQU. Soudim. 3U 

 I. '^. ccrruleus. Blue Sow-thistle. 



Flower-stalks ami calyx bristly, racemose. Leaves some- 

 what lyrate; their terminal lobe triangular and very 

 lartre. 



o 

 S. cseruk'Lis. Camtr. Epit. 28 I . /: /7. Br. SIT). LniiL Dot. v 31. 



t.242:K Hull 227. IIoo/c. Seal. 22(1. 

 S. Ci^ruleus lutifolius. Baah. Uhl. v. 2. 100."). f. lOOO. 

 S. canadensis. Linn. Sp. PL 1 I 1.^. IfUh. 674. Original sped- 



men from Kahn in I lie Linncean Uerburiuui. 

 S. alpinus. iraid. V. 3. 1.5 1 9. IValdenb. Lapp. 191. Huds. 336. 



FL Dun. t. 182. Fnelich in ist. Jnnnl. v. 1. 24. 

 S. n.20. Hall. Hist. v. 1.9. 

 S. flore caeruleo. Ger. Em. 29-1. f. 

 On the Highland mountains of Scotland, but rare. 

 On Loch-na-gore, Aberdeenshire, and on the Clova mountains. 



Mr. G. Don. 

 Perennial. July, Augusi: 



Root tuberous and woody, slightly creeping. Stems upright, a 

 yard high, round, simple, leafy, furrowed -, smooth in the lower 

 part ; besprinkled above with prominent, brown, glandular, viscid 

 hairs. Leaves smooth, pliant, variously Ivrate ; arrow-shaped 

 at the base, with a Wm^^A footstalk ; their terminal lobe large, 

 triangular, somewhat toothed ; their under side a little glaucous. 

 Fl. large, numerous, and handsome, of a fine blue, composinga 

 simple, terminal dusler, whose stalks, n^^ well as the linear brac- 

 feas, and the ral/jx, are clothed with copious, brown, glutinous, 

 bristly hairs. Juth. red. Seeds compressed, striated. Down 

 rough. 

 W'allis, by a strange mistake in iiis Historv of Northumberland, 

 was the cause of this fine alpine plant being reckoned by Hud- 

 son a native of Britain ; but what W'allis took for it is the Ci. 

 chorium Intybus. The Blue Sow-thistle however remains on our 

 list, having been discovered in the Highlands by the late Mr. 

 Don. It abounds on the principal mountains of Europe, from 

 Lapland to Switzerland. Some botanists cotitend that this is 

 the real .S. alpinus of Linn.Tus, and the accurate Dr. W'ahlen- 

 berg declares it to be the Lapland plant so denominated ; what 

 IS preserved under that name in the Linniean herbarium, and 

 fiQ:ure(lin Sm. Plant. Ir. /. 21, not being known to him as a 

 native of Lapland. This last species however alone answers to 

 the character in the Sp. Plantaruni, and cannot but remain .-w 

 the real .S. alpinus. All ambiguity is avoided bv retaining the 

 ol<l appellation o( ((Crulrus for our plant. 



'2. S, /jf//f/s/ris. Tall Marsh Sow-thistle. 

 Flowrr-^ialks and calyx bristly, somewhat umbellate. Leaves 

 rniicinate, rough-edged; arrnw->shnped at the base. 



