GERANIACE^E 



311 



sect ; primary segments triangular or ovate, stalked ; secondary 

 segments, oval, mucronate, narrowed to the base, or rather indis- 

 tinctly stalked. 



Tropseolum majus, L. (fig. 231). 



Primary root long, tortuose, succulent, colourless, giving off 



FIG. 231. Tropccolum majus. Nat. size. 



stout, fleshy, tortuose adventitious roots from near the top, which 

 like the primary one are frequently notched or cut into as if by con- 

 tact with some object. 



Ilypocotyl undeveloped. 



Cotyledons subterranean, large, fleshy, filling the testa, shortly 



