XLVT. ItHTZOPHOREiE. 493 



and America. The Order is divided into two distinct tribes, Ly some considered as inde- 

 pendent families : — I. Rldzophorea proper^ including the following genera: 'Rhizophora^ 

 Ceriops^ and Bruguiera, consists of the Mangroves, all maritime evergreen trees, the seeds 

 without albumen, and almost always germinating before falling off, the thick radicle enlar- 

 ging rapidly, and protruding to a great length from the summit of the capsule. 2, Legno- 

 tidece, trees or shrubs, not strictly maritime, with usually smaller flowers, and the seeds albu- 

 miuous, not germinating before they fall. To this tribe belongs the genus Carallia. 



Calyx-segments longer than the tube. Seeds without albumen, germi- 

 nating before falling. 

 Calyx-segments and petals 4. Stamens 8 to 12, Fruit more than 



half superior /I. RnizoPKOHA. 



Calyx-segments and petals 5 or 6. Stamens twice as many. Fruit 



more than half su])crior - 2. Ceriops. 



Calyx-segments and petals 8 to 15, Stamens twice as many. Fruit 



inferior 3- Bruguiera. 



Calyx campnnulate, with short teeth. Petals 5 to 8. Stamens twice as 



many. Fruit inferior. Seeds albuminous, not germinating before 



fallin-T ....... 4, Caeallta. 



ig 



1. EHIZOPHORA, Linn. 



Calyx-tube adnate, segments 4, Petals 4, entire. Stamens 8 to 12 ; fila- 

 ments' short ; anthers long, acuminate, connivent. Ovary half-nifenor, 2-celled, 

 with 3 pendulous ovules in each cell ; style filiform ; stigma 2-toothed Fruit 

 ovoid or conical, the persistent calyx-segments reflexed from near the base. 

 Seed solitary, without albumen, the rapidly enlarged radicle penetratmg 

 through the summit of the fruit.— Trees. Leaves entire. Cymes axiUary. 



The genus consists of three species only, ranging over tropical seacoasts, two, incluJiu 

 the Australian one, in the Old World, the third in Aznerica. 



mucronata 



X. «. ^«wx„x.*..«, ^am. ; DC. Trod. iii. 32. A g abrous evergi-een tree, 

 with thick branches. Leaves from brondly ovate to oblong-elliptical, obtuse, 

 with a projecting point (often worn off from the old leaves), 3 to 4 in. long 

 in the Australian specimens, but sometimes longer and narrower, conaceous, 

 entire. Stipules rather large, oblong, obtuse, very deciduous, /lowers m 

 axillary dichotcmous cymes shorter than the leaves with a pair of shoit thict 

 concave bracts, connate at the base under each fork and under each flojer 



Calyx sessile within the bracts, about i in. long the ^^ J^.J'Xate 

 down to the adnate part. Petals shorter than the caly.., t^ ^ J duplu-'i^^ 

 margins fringed with long hairs. Anthers 8, nearly sessile. 4 embraced by 

 the ''petals, I between tl^m. Style rather tl".ck, nearly as long as the 

 petals Fi-ult ovoid, 1 to U in- long.-Arn. in Ann. Nat. Hist. i. 362. 

 Wight. Ic. t. 238. ^ ^ „ , „ 



N. Australia. Port Essington, LeicUardt ; shores and islands of the Gulf of Car- 



'"Qte/slfr^^Along the coast and islands within the tropic, n. Bro.n, F. Mueller, 



and others. . , , • 



The species extends over the tropical shores of Africa and Asia. 



2. CEEIOPS, Am. 

 C.lyx.l„be adnate; scgu,cnls 5. rarely 6. P*'^,^» !;;7;j:"::tt 



•ml usually with \ or more cbvate seta; at He top. bt.imtns twice many 



