FRUITS REPLACED BY OFFSHOOTS. 



461 



occur in these shady spots which bear no flowers at all, and depend entirely on a 

 production of these offshoots (c/. fig 344 ^). 



There are two forms of Orange Lily indigenous to Europe. One (Lilium 

 croceum), occurring especially in the Pyrenees and South of France, almost always 

 ripens fruits and forms no bulbils in its leaf -axils. The other {Lilium bulbiferum). 



Fig. 344.— Flowers and fruits replaced by bulbils. The Coral-root (Dentaria hulbifera). 



' Inflorescence. 2 Leafy shoot on which two fruits have ripened ; bulbils in the axils of some of the leaves. > leafy shoot 

 whose inflorescence has atrophied ; bulbils in the axils of aU the leaves. * Detached bulbils forming roots. ' Ehizome 

 of Dentaria hulbifera. 



found in the valleys of the Central and Northern Alps, hardly ever fruits, but is 

 characterized by the bulbils it produces in the axils of its leaves; bulbils which 

 disarticulate in autumn and are scattered by the wind. But there is no difierence 

 noticeable in the structure of the flowers in these two Orange Lilies, and it is 

 difficult to explain their diflference in mode of propagation, save on the assumption 



