a2 MANGROVE SWAMPS 
Family 11, MYRTACEAE 
Genus OSBORNIA 
OSBORNIA OCTODONTA F. Muell. (Plate XXXI). TAWALIS. 
Local names: Tuawis (Palawan); tiwayos (Masbate); gunhun (Basi- 
lan); maligang (Polillo Island); tawalis (Tayabas, Camarines); sagasd’ 
(lloilo) ; tabau (Negros); duluk-diluk and sagasad’ (Negros) ; monotbonot 
(Leyte); kuldsv’’ (Zamboanga). 
Osbornia octodonta is a small tree with a very crooked trunk. 
The bark is reddish brown and very shaggy, and is sometimes 
used in the caulking of boats. The wood is light grayish brown, 
fine grained, and exceedingly durable. 
All parts of the plant are smooth except the flowers, which 
are hairy. The leaves are opposite, rounded at the tip, pointed 
at the base, about 4 centimeters long, and 1 to 2 centimeters 
wide. The flowers are white, less than a centimeter in length, 
without stalks, and are borne either singly or in groups of a 
few flowers either in the axils of the leaves or at the ends of 
branches. Petals are lacking. The calyx is bell-shaped and ter- 
minates in eight lobes. The fruit is included within the calyx 
tube and contains one or two seeds. 
Family 12, MYRSINACEAE 
Genus AEGICERAS 
Key to the species. 
Leaves up to 4.5 centimeters wide; flowers in rounded clusters, all of the 
flower stalks joined at about the same point........ Aegiceras corniculatum. 
Leaves 3 centimeters wide or less; flowers in compound inflorescences. 
Aegiceras floridum. 
AEGICERAS CORNICULATUM (Linn.) Blanco. (Plates »;0:0.0 NEO: O01 1\'/)) - 
SAGING-SAGING. 
Local names: Timbambdakis, pildpil, pagatpat, pipisik (Bataan) ; saging- 
sdging (Capiz, Negros, Lanao, Surigao, Mindoro) ; kindug-kindig, suldsig, 
tinduk-tindikan (Tayabas); dumanai (Cagayan); tindok-tindok (Leyte, 
Tayabas); tindék (Mindoro); tunduk-tundikan (Polillo Island); batag- 
batag (Zambales); bulali (Negros); tayokon (Surigao). 
Aegiceras corniculatum is a small tree or shrub which is found 
along streams in the inner part of the swamp and, occasionally, 
on more or less sandy spots in the outer part of the swamp. The 
bark is dark brown. The tree rarely exceeds 8 meters in height 
and is usually much smaller. 
The leaves are alternate, leathery, smooth, rounded and 
notched at the apex, somewhat pointed at the base, usually from 
4 to 10 centimeters in length, and 2.5 to 6 centimeters wide; the 
