THE STEM OR SHOOT. 



135 



then, is a quite comparable case to that of the adven- 

 titious leaves and shoots in Begonia and Lycopodiwn 

 above-mentioned. 



Adventitious shoots, in the form of bulbils, are often 

 produced in abundance on both the upper and lower 

 surface, and on the margin, of the leaves of the Cape 



Fig. 37. — Solatium Ly coper sicum. Adventitious shoot (as) growing 

 from " axil" of leaf-segment. (After Duchartre.) 



Star of Bethlehem (Ornithogalum thyrsoides), and on the 

 lower side only in 0. lovgibracteatum and 0. scilloides. 

 The writer has seen them formed in abundance along 

 the veins of the upper surface of the " Chinkerinchee " 

 (0. lacteum) (PI. X) and also in the axils of the bracts 

 of 0. tJiyrsoides. 



In the majority of the examples hitherto cited the 

 phenomenon occurs in a state of nature. Under culti- 



