362 SALAD PLANTS. 



ity, though it is sometimes slightly bitter. It is hardy, heads 

 readily, is slow in running to flower, succeeds well in warm 

 and dry weather, and is also well adapted for frame culture 

 or for forcing. 



Yellow- Head of medium size, yellowish-green varie- 



Brown gated with red, rounded at the top, and taper- 

 Dutch, va. ' 

 WHITE DUTCH. in"r to a point at the base : compact : seeds 



AMERICAN 

 Baows DUTCH. yellow> 



A half-early sort, of good quality, hardy, and well adapted 

 for winter culture, or for sowing early in spring. It some- 

 what resembles the Black-seeded Brown Dutch ; but, apart 

 from the difference in the color of the seeds, its foliage is 

 more blistered, and more colored with red, and the plant 

 produces numerous sprouts, or shoots, about the base of the 

 head. 



Cos Lettuces. These are quite distinct from the Cabbage 

 Lettuces before described. The heads are long, erect, largest 

 at the top, and taper towards the root, the exterior leaves 

 clasping or coving over and around the head in the manner 

 of a hood, or cowl. As a class, they are remarkable for 

 hardiness and vigor ; but the midribs and nerves of the 

 leaves are comparatively coarse and hard, and most of the 

 kinds will be found inferior to the Cabbage Lettuces in crisp- 

 ness and flavor. They are ill adapted for cultivation in 

 dry and hot weather, and attain their greatest perfection 

 only when grown in spring or autumn, or in cool and humid 

 seasons. 



Varieties. 



Alphange or In the form of the head, and in its general 

 Florence Cos. . 



(Black- character, this variety resembles the \Vhite- 



seeded. Both of the sorts are remarkable for 



