LEAVES FROM MY NOTE-BOOK. 335 



raised the tree declared that it was a seedling that had been 

 grafted, and, after the graft had perished, the stock sprouted and 

 produced the hizzaria. Gallesis, who carefully examined several 

 living specimens and compared them with the description given 

 by the original describer, P. Nato, states that the tree produces at 

 the same time leaves, flowers, and fruit identical with the bitter 

 orange and with the citron of Florence ; and likewise compound 

 fruit, with the two kinds either blended together, both externally 

 and internally, or segregated in various ways. 



I can find nothing as to the way in which the blood-orange is 

 raised. I have always understood it is produced by grafting the 

 orange on the pomegranate. If so, it shows the strong influence 

 which the stock can exercise on a graft, since these oranges are 

 not only permeated with a deep-red colour, but the flavour is very 

 much affected. 



Vines. — Gartner (p. 419) quotes two separate accounts of 

 branches of dark- and white-fruited vines which had been united 

 in various ways, such as being split longitudinally and then joined, 

 etc. ; and these branches produced distinct bunches of grapes of 

 the two colours, and other bunches with berries either striped or of 

 an intermediate new tint. Even the leaves in one case were 

 variegated. What is particularly curious is that attempts to raise 

 variegated grapes by fertilising white kinds with pollen of dark 

 kinds failed. 



Bulbs of blue and red hyacinths may also be cut in two, and 

 they will grow together and throw up a united stem, with flowers 

 of the two colours on the opposite sides, or in some cases with 

 the two colours blended together. 



"The facts given in this chapter" (chap, xi.), says Darwin, 

 " prove in how close and remarkable a manner the germ of a fer- 

 tilised seed and the small cellular mass forming a bud resemble 

 each other in all their functions— in their power of inheritance, 

 with occasional reversion, and in their capacity for variation of the 

 same general nature, in obedience to the same laws. This resem- 

 blance — or, rather, identity of character — is shown in the most 

 striking manner by the fact that the cellular tissue of one species 

 or variety, when budded or grafted on another, may give rise to a 

 bud having an intermediate character. We have seen that varia- 



