71 
Citrus decumana lL. (probably). Fig. 2. Pl. VII. 
Culta in horto Jhr. W. C. van Hevurn, Nov. 1919. 
Leafy branch: 
Ist leaf. Midrib stunted, top bipartite, the lateral halves unequal, 
the left moreover vaulted and bent. Petiole without alae 
(fig. 2a). 
24 leaf. Petiole narrow-winged, top somewhat unequal, bifid. In 
the middle of the blade a forked cleft (not drawn) separating 
the upper portion from the base (fig. 20). 
3¢ and 4th leaves missing. 
5th leaf. Petiole 4-winged, limb consisting of three very unequal 
portions; (apparently folium impari pinnatum) (fig. 2c and c’). 
6th leaf. Split up into three smaller and two larger folioles, alae 
pressed against one another (fig. 2d en 2d'); 2d shows that 
the two small folioles adhere to the underlying one. 
7th leaf. Alae very developed, folioles three .of which one split 
up to an ala-like portion and a leaflet (fig. 2¢). 
8th leaf. Petiole wingless, lamina consisting of three folioles, the 
two smaller turning their backs towards the back of the 
larger one (fig. 2f and /''). 
9th leaf rudimentary, only bud present opposite the 8th leaf. 
10th leaf. Small knob between the base of the blade and a nar- 
row ridge along the petiole, alae unequal and pressed against 
one another. 
id. id. Dec. 1919. id. id. 
Of 9 leaves the tops deep-notched on account of stunted 
midrib; 4 leaves with normal or almost normal acute apex, 
2 three-topped. Several leaves with stunted midrib causing two 
tops. Alae often absent. 
id. id. Nov. 1919. 
Leaf with one lateral foliole. 
Citrus grandis Hassk. Fig. 3. 
Culta in horto bog. Legit A. van Run, Jan. 20. : 
Coalescense of 3 or 4 leaves. As according to Dr. Smita in 
Citrus the topmost leaves of a twig are very condensed coales- 
cence easily comes about. 
