106 



ones and the micropyle is rather pointed, and also the pollen-sacs formed 

 upon the leaf are in majority of cases smaller than the normal ones. 



The ovule has often a longitudinal striation along the plane of the 

 lamina of the leaf. It is more marked in the fruit (fig. 2, g.), and 

 corresponds to the prominent edges of the stony part of the seed, which 

 is sharply pointed and smaller than a normal one. The ovule is partially 

 enclosed at the base in a cup-shaped swelling just as in the normal 

 ones, and this swelling gradually passes into the lamina of the leaf. 



Often elongated outgrowth of the tissue is formed, instead of ovules 

 or pollen-sacs of any definite form, mostly in the margin of the leaf for 

 some length along the course of the veins of the leaf (fig. 1 and 4, e.). 



Pollen-sacs developed at the margin of the leaf is neither arranged in 

 any definite numbers, nor in any definite manner so as to form sori. As 

 a rule no special terminal scale (" Endschuppe ") is developed ; but 

 sometimes when an entire leaf is transformed into a stamen, the reduced 

 lamina of the leaf assumes the form and position of the terminal scale. 

 Pollen grains with proper number of cells are developed in the anther. 



The petioles of leaves bearing ovules are of normal size, but those 

 bearing pollen-sacs are often much reduced in length and thickness 



Besides the staminody and carpellody of foliage leaves, various 

 instances of multiplications and prolifications of floral organs are found 

 in these same trees. 



The flowers with 3-13 or more ovules, each of which is provided 

 with its own stalklet are produced in abundance. The ovules are at 

 first mostly alternate, but their position is usually disturbed during 

 their subsequent growth. 



Fig. 3 illustrates an interesting case. The flower- stalk is larger 

 than that of a normal flower both in length and thickness. The 

 ovules, each of which is raised on its own stalklet, are developed alter- 

 nately along the common flower-stalk (the floral axis), but the upper- 

 most (?) one has grown over the others. Moreover the flower-stalk (the 

 floral axis) is terminated with a scaly bud, which decidedly disproves 

 the foliar nature of the flower-stalk, though it was considered as a 

 leaf-stalk by Van Tieghem. 



Not only the flowers with a number of ovules provided with their 

 own long stalklets are met with, but also flowers with a number of sessile 

 ovules and several intermediate forms between such an abnormal flower 

 and a normal two-ovuled flower. 



