76 MANGROVE SWAMPS 
midrib is slender; the petioles are usually about a centimeter or 
less in length. The flowers are fragrant and borne in rounded 
clusters, the bases of the stalks all rising from nearly the same 
point. The flower stalks are slender and 1 to 2 centimeters in 
length. The calyx has 5 lobes, which are leathery, twisted to the 
left and overlapping to the right, and about 6 millimeters long. 
The corolla is white and has a short tube about 6 millimeters long 
with five pointed lobes, which overlap to the right in the bud and 
are about as long as the tube. There are five stamens, which are 
inserted on the corolla tube and are longer than the corolla lobes. 
The fruit is shaped like a miniature banana except that it usually 
ends in a sharp point. It is up to 7 centimeters in length and 
contains a single, elongated seed which fills the cavity of the 
fruit. 
AEGICERAS FLORIDUM R. and S. (Plate XXXV). TINDUKTINDUKAN. 
This species is much less abundant than Aegiceras cornicu- 
latum and differs from it in having smaller leaves, which are 
3 centimeters or less in width, and in having branched inflores- 
cence stalks. 
Family 13, APOCYNACEAE 
Genus CERBERA 
CERBERA MANGHAS Linn. (Plate XXXVI). BARAIBAI. 
Local names: Buto-but6é (Surigao, Dinagat Island); bayag-usd, pan- 
dakdki (Camarines); baraibdi (Baler); buta-butd (Bataan); bat’ano 
(Camiguin Island); kubi (Zambales); ditd (Moro); lipdta (Palawan) ; 
panabulon (Negros); duirgas (Cotabato). 
Cerbera manghas is usually a shrub, although it may some- 
times grow into a small tree. It occurs in situations similar to 
Excoecaria agallocha. Cerbera manghas has milky sap like that 
of Hxcoecaria. 
The leaves are shiny, narrowed at both ends, and about 20 
centimeters long. The flowers are white, fragrant, about 5 centi- 
meters in diameter, and occur on terminal branches. The calyx 
tube is short and ends in five lobes, which are spreading, pale 
green, pointed, and about 2 centimeters long. The corolla tube 
is slender, greenish white, large above, and about 4 centimeters 
long. The upper part of the corolla is spreading, about 5 centi- 
meters in diameter, white with a purple center, and divided into 
five lobes. The fruit is smooth, green, rounded, and about 6 
centimeters long. 
Cerbera odollam Gaertn. is a synonym of Cerbera manghas 
Linn. 
