!;'22 Agricultural Experiment Station, Ithaca, N. Y. 



Before going further the reader should stop long enough to notice 

 the architecture of the sweet pea liower (Fig. 76). The broad 

 orbicular upper petal, s, is the standard, banner, vexillum, or shield ; 

 the two mid-sized pieces, w, are the wings, and these close over the 

 smallest central portion, comprised of two connivent parts, called 

 the keel, k. AVhen the sweet pea attempts to become double the 

 duplication usually appears in the standard, which, instead of com- 

 prising but a single piece, may be formed of two or three or four 

 petals. This is well shown in Fig. 77, in which the expanded 

 flower is seen to have three standards. There is no double variety 



?7. — Double pea. The Splendor. 



of sweet pea, but most of the improved types tend to duplicate tbe 

 standard, and some varieties will give from 20 to 50 per cent, of 

 these monstrosities, when grown upon strong soil. In other words^ 

 there is a general and cumulative tendency towards doubling, as the 

 species is improved, but the seeds of double flowers of any particular 

 variety do not necessarily produce double flowers. There is every 

 reason to ex[)ect, however, that the time will soon come when 

 double peas will reproduce themselves as reliably as many other 

 annual flowers do ; but unless the product is more shapely than any 

 thing whicb I have yet seen, I shall be ready to quit sweet peas 

 when I am obliged to grow double ones. 



