208 Oranges and Lemons of India. 



without joints, especially in the turunj, bajoura, and 

 lemons. Afterwards begins to appear the margined or 

 winged petiole, and also the joint between this and the 

 leaflet. In others, the joint is quite visible as a pale 

 dot, but the margins of the leaflet are continuous with 

 the wings of the petiole. Finally, the typical form of 

 the leaves, whatever they may be, begins to be de- 

 veloped. If the variety has typically a large cordate 

 petiole, at first this is small, and becomes larger and 

 larger as the foliage of the seedling developes, until it 

 assumes its typical adult proportions, which in the C. 

 hystrix often exceed those of the leaflet. Of course, 

 on any adult tree will be found a variety of leaves, 

 owing to new branches being continually developed, 

 and these frequently repeat in their first leaves em- 

 bryonic forms, or, possibly, reversions. 



In the nepalee nimboo, many leaves of the seed- 

 ling have no joint, the leaflet edges coming down low 

 on the petiole without any sign of joint between the 

 two. 



The qeem citron of Saharunpore has typically large 

 cordate petioles, but the first four or five leaves of 

 the seedling had no sign of joint. Then came one 

 or two leaves with a joint, but with the margins of the 

 leaflet and petiole continuous. Afterwards the typical 

 form of leaf began to appear. 



The Muscat large sweet lemon has first no joints, 

 then joints with the petiole margin and those of the 

 leaflet continuous. Sometimes indentations occur on 

 the continuous edges on a level with the joints. 



As a rule, those citrus which have normally large 

 winged petioles show this expansion earlier, while the 

 Malta lemon, the bajoura, and the citron and others 

 go on for some time without showing any development 

 either of a joint or separate petiole wings. 



