GENEEAL MORPHOLOGY OF THE PLANT 57 



side of the stem or branch from which the leaf grows, and 

 become united more or less by their outer margins, and thus 



Fie. 89. Fig. 90. 



Fig. 89. Compound leaf of Rohinia Pseud-acacia, with spiny stipules at its 

 base. Fig. 90. Modifiecl stipules of Smilax, forming tendrils, a.. 



form a kind of incomplete sheath, as in the A stragalus ; they are 

 then said to be synocJireate or opposite (fig. 85, s) ; if under 



Fig. 91. 



Fig. 92. 



Fig. 91. A portion of the stem witli some leaves of Tenus's Ply-trap (Hiomea 



musdpida). I. Lamina, p. Winged petiole. Fig. 92. Leaf of Orange 



(Citrus Aurantium). p. Winged petiole articulated to the lamina I. 



similar circumstances they cohere by their inner margins, as in 

 Melianthus annuus and Houttv/ynia cordata (fig. 86, s), they 



