390 The Principles of Vegetable -Gardening 



used at all, they should be applied in comparatively small amount 

 and be of such kind that they will give up their fertility early in 

 the season. If ordinary stable manure is used, it should be applied 

 in the fall in order that it may become thoroughly incorporated 

 with the soil and be ready for use at the earliest moment in the 

 spring." Cornell Bull. 115. 



The Limas may be thrown into the following classes : 

 1. The Sieva or Carolina bean ( Phaseolus lunatus}, a small and 

 slender grower as compared with the large Limas, early and rela- 



Fig. 122. Leaf of Challenger, one of 

 the Potato Lima class (X %). 



Fig. 123. Challenger. 

 Half size. 



tively hardy, truly annual, with thin, short and mostly broad 

 (ovate-pointed) leaflets, numerous small papery pods which are 

 much curved on the back and provided with a long upward point 

 or tip and which split open and twist when ripe, discharging the 

 seeds; beans small and flat, white, brown, or variously marked 

 with red. Fig. 119. 



2. The true Lima bean (P. lunatus var. macrocarpus) , distin- 

 guished from the Sieva by its tall growth, lateness, greater suscepti- 

 bility to cold, perennial in tropical climates, large, thick, often 

 ovate-lanceolate leaflets, and fewer thick, fleshy, straightish (or 

 sometimes latterly curved) pods with a less prominent point and 



