vm] REGENERATION IN BLADDERWORTS 105 



shoots (yf, A^ , A< , A^j arose from a leaf of U. vulgaris. Again, 

 the inflorescences of various species, if cut off and immersed in 

 a culture solution, have been seen to give rise to lateral shoots 

 from the axils of their scale leaves. These branches may occur 

 in extraordinary abundance: in Utricularia vulgaris as many as 



FIG. 71. Utricularia vulgaris, L. Inflorescence with numerous lateral shoots 



arising in axils of scale leaves on inflorescence axis, after 47 days culture under 



water on peat, and, later, with the addition of a culture solution. (Enlarged.) 



[Luetzelburg, P. von (1910).] 



nineteen lateral shoots have been observed to develop in con- 

 nexion with one scale 1 ; Fig. 71 shows a large number of 

 branches growing from a submerged inflorescence of this 

 species. As illustrations of the numerous abnormalities on 



1 Luetzelburg, P. von (1910). 



