VASCULAR SYSTEMS OF FLORAL ORGANS. 171 
to supply ovular cords (9, 10). The circumferential cords, i. e. 
originally the three outer and dorsal (7, d.), have increased in 
number (8-10). Here, therefore, there is no trace of an axial 
system after the breaking-up of the circle in fig. 5 into the three 
larger and three smaller cords (6). I would, therefore, draw 
the line between the axial and carpellary cords, between figures 5 
and 6; for in the latter we have the three carpellary systems 
clearly differentiated ; although the tracheæ are within and the 
phloém without in each cord, just as if they were really axial 
and surrounding a central medulla. 
Figure 10 represents a section higher up the ovary, and shows 
the placentas, which are of course double, to which the ovules are 
attached. 
xir. Lycunis protca.—The pedicel of the male flower con- 
tains four or five cords which lie on a circle (1). They increase 
till they form a complete ring (2), which then provides ten 
cords for the sepals (3). Two portions (4, p.), one on each side 
of the marginal cords of the sepals (4, m.s.), are set apart as peta- 
line cords, which thus retain their tracheæ in pairs, thereby indi- 
cating their origin (4, 5, p.). About five masses of phloém with 
scarcely perceptible tracheæ form a broken ring within these 
petaline cords (5), and give rise to the ten stamens (6, st). 
Figures 7 and 8 represent vertical sections. In the cup-shaped 
depression within the stamens there is formed a honey-gland (8; 
9, G); but the rudiment of the pistil in no way contributes to its 
formation, as it contains no cords. 
It should be observed that the petaline stamens are not given 
off from the petaline cords in so pronounced a manner as in 
Dianthus (x. 5, 6); but they appear to be formed from the more 
central masses of phloém instead, and quite independently of the 
petals (5, 6). 
In the female flower the cords at the base of the calyx form a 
complete ring and give off ten cords for the sepals (as in fig. 3). 
Then a pentagon with five exterior and prominent cords remains : 
these latter are for the petals (10, p.). As soon as they, to- 
gether with the rudiments of the staminal cords, have become 
isolated (11, rud.st.), another pentagon then appears, alternate in 
position with the former (12). It consists of five large clusters 
of tracheæ and five smaller ones. These are for the carpels, 
already thus sketched out; for the larger groups will become 
