14 FLORTJLA ADENENSIS. 



integris ; foliolis lateralibus ovatis, terminali obovato ; calyce persis- 

 tente, campanulato, 4-dentato ; petalis obovatis ; starainibus 8, aequi- 

 longis ; stylo antheris breviore ; stigmate tetragono, obtuso. Fructu 

 ovato, acuto, glabro, in sicco tetragono, biloculari, monospermo. 



Amyris Opabalsamum, Forsk. Descr. p. 79. B. pubescens, Stocks in 

 Bombay Trans. 1847, et Journ. of Bot. i. p. 264. 



Hab. Aden, in monte Jibeel Shumshum, ad alt. 1500 ped. {Hook. fit. !). 



Distr. In Arabia Felici ! Beloochistan ! 



Arbor mediocris, 15-pedalis, inermis, balsamifera. Truncus basi incras- 

 satus. Rami divaricati, cortice cinereo, lsevi, tenui. Flores monoici, 

 in apice raraulorum brevissimorum aggregati, subsessiles vel breviter 

 pedunculati. Corolla rubra. Lignum, cortex, fructusque odorem 

 balsamineum emittentes. 



Dr. Stocks, in the ' Bombay Transactions ' for 1847, says that this tree 

 produces a gum of no value, and that the resin of commerce is yielded by 

 Balsamodendron Mukul, Hook. 



Ordo XIII. MOBINGKEJE. 



1. MORINGA, JuSS. 



1 . M. aptera ( G'drtn. Fruct. ii. p. 315). Ramis divaricatis, nudis ; foliis 

 ad raches reductis ; rachibus bi- tripinnatis, 4-8-jugis, deflexis ; foliolis 

 ovatis, obtusis, integris ; paniculis erectis, axillaribus ; floribus her- 

 baceis, glaucis, pedicellatis ; pedicellis bracteolatis, articulatis ; calyce 

 5-partito, segmentis imbricatis, subaequalibus, oblongis; petalis ob- 

 longo-linearibus, reflexis ; staminibus 10, insequalibus ; antheris uni- 

 locularibus ; ovario libro, stipitato, 3-sulcato ; fructu leguminiformi, 

 longe rostrato, ad apicem inter semina valde constricto; legumi- 

 nibus obscure trigonis, 3-valvis, valvis extus longitudinaliter bisulcatis, 

 3-fastigiatis ; seminibus turbinatis, trigonis, pendulis ; testa Crustacea. 

 M. Zeylanica, Linn. Sp. Plant, p. 546, et Delil. Hyperanthera, Forsk. 

 Desc. p. 67. Balanus myrepsica, Belon, Obs. p. 126. 



Hab. Aden, spontanea in vallibus saxosis prope locum " Steamer 

 Point" dictum (T. Anders.). 



Distr. In Arabia Petrsea ! Syria ! Muscat ! iEgypto superiore ! 



Arbor Arabica, 10-12-pedalis. Cortex cinereo-fuscus. Ramuli juniores 

 virides. Raches saepissime foliola gerentes, pedales. Corolla pallide 

 flava. Fructus 8 unc.-l ped. longus, deflexus. Semina oleaginea. 



The seeds of this tree are said by Decaisne to yield the Ben oil of com- 

 merce ; and he quotes the old traveller Belon as his authority. Guibourt 

 also says that the true Ben oil is derived from M. aptera, Gartn. ; and 

 DeCandolle, who, however, doubts the distinctness of the species from M. 

 pterygosperma, is of the same opinion. Lindley and Simmonds, and more 

 recently Major Drury in India, ngrro in considering M. pterygosperma 

 as the source from which the oil is obtained. (Jnibonrt also mentions 



