314 Hartog . — On the Floral Organogeny 
in other orders, the close kinship with Saraca , we are con- 
strained to admit that the uniformity of size and distribution 
and the number of the bracteolar leaf-traces in Brownea still 
do not justify us in regarding the sheath as composed of more 
than two connate bractlets. 
2. The flower proper. — The easiest way to describe the 
distribution of the floral leaf-traces is perhaps to follow them 
from below upwards. In Saraca the vascular ring above 
the bractlets assumes a very irregular shape, with nine angular 
prominences, and as many bays, the posterior bay being the 
largest. The apex of each of the angles becomes detached 
p 
S 
Fig. 15. Diagram to show the * 
arrangement of the leaf-traces in 
the flower of Brownea coccinea. 
The dotted lines show how they 
unite edge to edge in their descent. 
S, sepal ; P, petal ; A, stamen (of 
the 9 anterior) ; a, stamen derived 
from the chorisis of the one in 
front of the vexillum; c, traces of 
the carpellary stipe. 
s 
Fig. 16. A similar diagram of 
Saraca indie a ; the traces of the 
missing petals are present, but the 
small anterior traces of the carpel- 
lary stipe are absent ; and so are 
those of the anterior stamens. 
as the trace of a flower-leaf, sepal or (suppressed) petal, ex- 
cluding the vexillum. The flanks of each of the seven anterior 
prominences separate from their neighbours and converge first 
on the outer and then on the inner side to form crescentic or 
concentric bundles for the stamens. The outer flank bundles 
of the two posterior angles now move inwards with a rotation 
on themselves, and soon, with the posterior bay, constitute a 
new (broken) vascular ring wholly posterior to the cavity 
