2io Oranges and Lemons of India. 



been one leaflet expansion from the tip of the original 

 simple leaf (now the winged petiole) and two opposite 

 leaflet buds from the same node forming the leaf of the 

 C. trifoliata. Eventually, the middle leaflet, absorbing 

 to itself most of the nourishment, grew more than the 

 side ones, and finally extinguished them, and in many 

 cases dwarfed the petiole leaf. These side leaflets, 

 however, in the seedlings now and again reappear 

 among the first or embryonic leaves. 



In the citrons proper, and bajouras, leaves like 

 those of pi. 247, fig. a, and pi. 250, figs, a and b, and 

 others, are very common, even in adult trees. They 

 have no sign of joint, and one not knowing the com- 

 pound nature of the citrus leaf, would take them for 

 simple leaves. Whether these are reversions to the 

 supposed ancestral simple leaf, or cases in which the 

 joint has been extinguished, and the edges of the 

 leaflet and petiole wings become continuous, it is 

 impossible to say. 



In the Gardeners Chronicle of 5th Nov. 1887, 

 page 560, the figure of an abnormal Begonia is given. 

 The ovary, instead of being wholly inferior, as is 

 usual, is partly superior, with the base of the carpels 

 open, showing numerous ovules. This is not all. 

 Between and within the carpels, is a tuft of perfectly 

 formed stamens. " A more topsy-turvy violation of 

 morphological sequence can hardly be met with. . . . 

 Here we have a flower, that is usually unisexual, 

 becoming structurally bisexual. We have carpels 

 which are generally closed, so as to conceal their 

 contents, gaping apart, to disclose the ovules ; 

 while in the very centre of the flower, within and 

 between the divergent carpels, are the stamens, some 

 of which stamens, as it appeared to us, occupied the 

 place of ovules, and were indeed substitutes for them." 



