Bruguiera. j 
XLIX. RHIZOPHOREiE. 
561 
lobes. Seeds solitary, without albumen, the rapidly enlarged radicle penetrating 
through the summit of the fruit. — Trees, with the habit of Rhizophora. Flowers 
solitary or few together, on short axillary recurved peduncles. 
The genus is widely spread along the tropical seacoasts of the Old World. The four Australian 
species are also common Asiatic ones. — Benth. 
Flowers solitary, lin. long. 
Petals with several set® at the end 1. B. Rheedii. 
Petals without set® at the end 2. B. gymnorrhiza. 
Peduncles 3-flowered. Calyx about 8-cleft. Petals ciliate from base to 
apex ; set® 3 to 4 and 1 in the notch 3. B. caryopliylloides. 
Peduncles many-flowered. Calyx about 8-cleft. Petals with 5 set® . . 4 B. parvijiora. 
1. B. Rheedii (after H. V. Rheede), Blume, Emm. PI. Jav. 92 ; Benth. FI. 
Austr.n. 494. Red Mangrove or Orange Mangrove. “ Kowinka,” Stradbroke 
Island, Watkins; “Biree,” Bundaberg, Keys; “ Bam-bir,” Cooktown, Roth : 
“ Tcherda,” Batavia River, Roth. A glabrous evergreen tree. Leaves ovate or 
oblong-elliptical, very shortly acuminate, 3 to 5in. long, narrowed into a rather 
long petiole, coriaceous. Stipules oblong, 1 to 2in. long, very deciduous. Flowers 
solitary, on short recurved axillary peduncles, without bracts. Calyx very thick 
and rigid, from a little more than lin. to 1^-in. long, the narrow turbinate tube 
about one-third the whole length, the angles scarcely prominent or sometimes 
quite obscure, the lobes usually about 12, but variable in number. Petals shorter 
than the calyx, densely hairy at the base, and the induplicate margins more or 
less hairy to the end ; set* usually 1 in the notch and 3 or 4 at the end of each 
lobe. Anthers embraced in pairs by the induplicate margins of the petals. 
Ovary very short and wholly inferior. Fruit at first crowned by the calyx-limb, 
which often falls off as the radicle protrudes, the latter assuming a narrow spindle- 
shaped form, obscurely notched, with about 6 prominent angles.- — Arn. in Ann. 
Nat. Hist. i. 367 ; B. australis, A. Cunn. in Arn. l.c. ; B. Rheedii and B. Rumphii, 
Blume, Mus. Bot. i. 138. 
Hab.: Islands of the Gulf of Carpentaria, Henne ; Shoal Bay passage, R. Brown ; along the 
coast from Moreton Bay to Torres Straits, A. Cunningham, F. v. Mueller, and others ; Bussell 
River. 
Wood of a light colour, close-grained, tough and nicely marked ; useful for many purposes, 
especially as axe and pick handles. 
The bark is said to contain about 19% of tannin. 
Fruit prepared for eating. Timber from flat roots used for oar blades. — Roth l.c. 
Wight’s figure of B. Rheedii, Ic. t. 239 A, as well as his specimens, differ in some slight 
respects, and are considered by Blume as constituting a distinct species. The set® of the 
petals appear to be pretty constant in the Australian specimens, but it remains to be proved 
how far their presence and number are really good specific characters. — Benth. 
2. B. gymnorrhiza (naked-rooted), Lam.; Blume, Mus. Bot. i. 136 ; Benth. 
FI. Austr. ii. 495. An evergreen tree, closely resembling B. Rheedii. Leaves 
usually smaller. Flowers as in that species, solitary on short recurved axillary 
peduncles, but smaller, varying from f to nearly lin. in length. Calyx-tube 
marked with very prominent acute angles ; lobes usually 8 to 10. Petals shorter 
that the calyx, hairy on the margins, the lobes obtuse, without setae, but a very 
short seta, often, although not always, in the notch between them. 
Hab.: Broadsound, R. Brown, and other parts of the northern coast. 
3. B. caryophylloides (claw-like), Blume, Fnum. PI. Jav. 93. A small 
tree. Leaves oblong to oblong-lanceolate, acuminate at both ends, scarcely 
coriaceous. Peduncles equalling the petioles, 1 to 5 usually 3-flowered buds 
sub-acute, pedicelled. Calyx-tube small, smooth, about 8-cleft ; lobes linear, 
sub-acute, about £in. reflexed and half the length of the tube in fruit. Petals 
