411 



There arc varieties Avilli white flowers, jjiirple flowers, wilh blue 

 flowers, and wilh red flowers. 



The second species has the roots coniposctl of many thick fleshy 

 knots or talkers, whicli are joined l)y fleshy fibres: the sUdks rise a 

 foot and half hi<>h, and incline on one side: the leaves on the lower 

 part are six inchi-s long, and two inches and a half broad in the 

 middle, ending in acnle points, ;nid not so rough and hairy as the 

 first; they are allernale and sessile;: the two upj)er leaves on every 

 branch stand opposite, and just above them are loose bunches of 

 pale yellow flowers, the corolla of which is s(retched out further 

 beyond the calyx than in the common sort. It is a native of Ger- 

 many, &c. and flov.'ers from May to October. 



The third has a perennial root: the stalks two feet high: the 

 leaves rounder, and aimed with rough prickly hairs: the flowers in 

 bunches like the first sort, but blue: they appear in March, but 

 seldom produce seeds in this climate. Found near Constantinople. 



Culture. — These plants may be increased by seeds or parting the 

 roots, but the latter is more practised. The seed should be sown in 

 the spring, in a border of common eaith; in the autumn the plants 

 will be proper to set out where they are to remain, or to remove into 

 other pots. The roots should be parted in the anlunm, and planted 

 out either in beds at)out a foot from plant to plant, or where they 

 are to remain; almost every part will grow, and the jilanls are 

 hardy, and succeed in any soil or situation : they only require to be 

 kc^pt clean afterwards. They produce variety in mixture in the 

 borders. 



