Dr. Arnott on the Genus Rhizophora. 363 



Blume does not notice the woolly margin of the petals, and 

 the description in his generic character is applicable almost 

 solely to the next species. Wallich may have both in view 

 in his list of East Indian plants under No. 4878 ; but what I 

 have seen of that number belong exclusively to the present 

 species. 



§ 2. Stamina nunc 8, saepius 11 — 12. Petala plana, submembranacea, 



glaberrima. Pedunculi petiolo multo breviores, ex axillis foliorum an- 



notinorum orti, crassi^ ppice sub-biflori : flores sessiles. 

 3. R. conjugata (Linn.) ; foliis oblongis subacuminatis longe cuspidatis. 



Lin. Sp. p. 634 ; Fl. Ceyl. n. 181 ; DC. I. c. p. 33 ; Wight. Cat. n. 2449. 



Roxb. Hort. Beng. p. 36 (in fl. Indica omissa). — R. Candelaria DC. 



I. c. — R. apiculata Blum. en. PL Jav. i. p. 91. — Rheed. H. Mai. vi. tab. 



34. Rumph. Amb. iii. t. 71 et 72. 

 Hah. in insulis Ceylano et Java. In Malabaria prope Cochin, &c. 



Rheede, Quilon ; Wight. 



Blume has referred the synonym of Rumph to his JR. Man- 

 gle, but the peduncles are represented as extremely short, and 

 the petals appear to be glabrous, if these be what is meant by 

 " staminibus quatuor aliis longioribus et incurvis supra florem 

 elevatis ;" but probably Rumph had both species in view, as 

 he says that the flowers are sometimes bigeminate, which has 

 more reference to R. mucronata. Rheede's figure is a good 

 representation of JR. conjugata, nor are the narrow glabrous 

 petals omitted by the artist ; but the description of the flower, 

 " petalis lanuginosis hirsutisque," is taken from the few-flow- 

 ered short-pedicelled form of R. mucronata, 



II. Ceriops, Am. 



Calyx 5-fidus ; laciniae tubo 2 — 3-plo longiores. Petala 5, ovalia, emargi- 

 nata, apice setigera, plana, ante anthesin stamina duo amplectentia. 

 Stamina 10, erecta; filamenta petalis subdimidio breviora: antherae 

 cordato-ovatae, obtusae, filamentis multo breviores, dorso paullo supra 

 basin affixae. Ovarium semiadhserens, tri- (in una specie, forsan in 

 omnibus) loculare, 6-ovulatum, parte libera ovata carnosa solida apice 

 in stylum stamina superantem desinente. Stigma simpliciusculum. 

 Fructus subovatus, prope basin laciniis calycinis patenti-recurvis coro- 

 natus, tubo longior. 



Pedunculi petiolum subaquantes, cymum densiflorum subcapitatumferentes. 

 Calyx bractea cupulata suffultus. Flores parvi, vix pisi magnitudine : 

 alabastra subovoidea. Valde a Rhizophora differt hocce genus habitu, 



