Download base connate. Petals 4, entire. Ovary half

RHIZOPHORACEAE
347
base connate. Petals 4, entire. Ovary half-inferior. Fruit ovoid, pendu­
lous the calyx lobes persistent, refiexed, the radicle germinating' on the
tree, long-protruded, perforating the apex of the fruit.
(Greek "root" and
"to bear."-)
Species about 5, tropics generally, on muddy seashores, along tidalstreams, etc., characteristic trees of the mangrove swamps, 2 in the
Philippines.
Peduncles much shorter than the petioles, 2-flowered
Peduncles about as long as the petioles, 3- to 7-fiowered
1. R. conjugata
2. R. mucronata
1. R. c o n j u g a t a L. Bacao, Bacauan ( T a g . ) .
A tree of the mangrove swamps, up to 12 m high, with prop-roots.
Leaves coriaceous, green and shining, oblong-elliptic, 10 to 16 cm long,
apex acute or mucronate, base acute. Penducles from the axils of fallen
leaves, shorter than the petioles, 2-flowered. Flowers sessile. Fruit ovoid,
pendulous, brown or olivaceous, about 4 cm long, the persistent calyx-lobes
reflexed, the protruded radicle green, cylindric, 20 to 40 cm long. (Fl.
Filip. pi. 135, R. mucronata.)
Along tidal streams, fish-ponds, etc., Malabon, fl. most of the year;
throughout the Philippines along tidal streams, one of the characteristic
trees of the mangrove swamps. Tropical shores of Asia, Africa, and
Malasia.
2. R. m u c r o n a t a Lam. Bacao, Bacauan ( T a g . ) .
Very similar to the preceding species, and with the same habit. Leaves
oblong-elliptic, coriaceous, shining, up to 16 cm long, apex with a slender
mucro. Peduncles axillary, 2.5 to 4 cm long, about as long as the petioles,
forked at the apex, bearing from 3 to 7 flowers. Flowers and fruit about
as in the preceding species.
In mangrove swamps, along tidal streams, etc., fl. most of the year.
Range about the same as for R. conjugata.
2. B R U G U I E R A
Lamarck
Trees or shrubs of the mangrove swamps with prop-roots, glabrous.
Leaves entire. Flowers axillary, solitary or cymose, small or large. Calyx
split into 8 to 14 narrow lobes, obconical or campanulate. Petals oblong,
2-lobed or emarginate, appendiculate. Stamens 16 to 28; anthers linear,
mucronate, about as long as the filaments. Ovary 2- to 4-celled. Fruit
included in or adnate to the calyx-tube, 1-celled, 1-seeded, germinating
on the tree. (In honor of J. G. Bruguieres.)
Species about 7, along the seashores and tidal streams in the tropics
of the Old World, characteristic of the mangrove swamns, 4 in the Philip­
pines.
Flowers about 3 cm long
Flowers about 1 cm long
1. B. eriopetala
2. B. cylindrica
1. B. eriopetala W. & A. Pototan, Busain, Bacauan ( T a g . ) .
A small or large tree, the young branches usually slender. Leaves
coriaceous, shining, oblong-elliptic to oval-oblong, acute at both ends, 8
to 16 cm. long. Flowers yellow, axillary, solitary, 3 cm long, the pedicels
decurved. Calyx-lobes usually 10. Petals shorter than the calyx-lobes,
cleft at the apex, bearing a stout seta in the sinus, the edges clothed with