LETTUCES 143 



alone in England to meet the great demand there is 

 for them especially in hot seasons. 



There are two distinct kinds of Lettuces grown, 

 namely, (i) the " Cabbage Lettuce " (Lactma capi- 

 tata), and (ii) the " Cos " or " Romaine " Lettuce 

 (Lactuca sativa). Each kind has several varieties, 

 some being more suitable for frame and bell-glass 

 culture, while others nourish in the open air. 



They may be classified as follows for intensive 

 cultivation : 



I. CABBAGE LETTUCES 



(a) EARLY OR " PRIMEUR " CABBAGE LETTUCES. 

 The seeds of the varieties belonging to this group are 

 generally sown between September i and the end of 

 February, and again in March for a succession on 

 warm borders. 



The varieties most in favour with Parisian growers 

 are : 



1. The Crepe or Petite noire Lettuce (white and 

 black-seeded varieties). Both kinds are grown exten- 

 sively for the first-early crops, for which they are 

 specially adapted, as they " heart up " without much 

 air or water. 



2. Gotte Lettuce (white and black-seeded varieties). 

 The White-seeded Gotte (syn. Tennis Ball, Boston 

 Market) is an excellent small-hearted frame Lettuce, 

 but is not so early as the Black-seeded Gotte (syn. 

 Paris Market Forcing). Good sub- varieties of the 

 Gotte Lettuce are Tom Thumb, Jaune d'Or (syn. 

 Golden Frame), the George, and another form of the 

 Paris market forcing variety, Gotte lente d monter (or 

 Black-seeded Tom Thumb). 



