280 NEUMANN'S EXPEEIMENTS. 



tried, in 1839, to multiply Theophrasta latifolia with its leaves cut in two, 

 with which I made two cuttings ; these portions took root and developed 

 buds, as is seen in Fig. XXXIX. e. This experiment evidently proves 

 that some plants may be reproduced by cuttings of the midrib of their 

 leaves. The primitive bud, as I have remarked, rises from the callus 

 above the root which first shows itself, and about .l-16th of an inch 

 from the base of the midrib. The dotted part, shown in the upper half 

 of the annexed leaf, e, was removed in order to put the leaf into a little 

 pot, but this did not prevent the success of the cutting." 



