434 APPENDIX, No. V. 



as in Amygdaleoj, are two in number,) as well as the embryo being erect. The 

 greater part of Chrysobalaneae have their flowers more or less irregular ; the 

 irregularity consisting in the cohesion of the foot-stalk of the ovarium with one 

 side of the tube of the calyx, and a greater number, or greater perfection of 

 stamina on the same side of the flower. 



Professor Smith's herbarium contains only two genera of this order, namely, 

 Chrysohalanus and Parinarium.* One species of the former is hardly dis- 

 tinguisliable from Chrysol>alanus Icaco of America, and is probably a very 

 common plant on the west coast of Africa : Icaco being mentioned by Isert •}- 

 as a native of Guinea, and by Adanson:j: in his account of Senegal. 



Of Parinarium, there is only one species from Congo, which agrees, in the 

 number and disposition of stamina, with the character given of the genus. 

 In these respects M. de Jussieu § has observed a difference in the two species 

 found by Adanson at Senegal, and has moreover remarked that their ovarium 

 coheres with the tube of the calyx. In that species most common at Sierra 

 Leone, and which is probably one of those examined by M. de Jussieu, the 

 ovarium itself is certainly free, its pedicellus, however, as in the greater part 

 of the genera of this order and sevei-al of CaesalpineEe, fiiTnly cohering with the 

 calyx, may account for the statement referred to. I am not, indeed, acquainted 

 with any instance among Dicotyledonous plants of cohesion between a simple 

 ovarium, which I consider that of CiirysobalancEC to be, and the tube of the 

 calyx. 



The complete septum between the two ovula of Parinarium, existing before 

 fecundation, is a peculiar structure in a simple ovarium; though in some 

 degree analogous to the moveable dessepiment of Banksia and Dryandra, and 

 to the complete, but less regular, division of the cavity that takes place after 

 fecundation in some species of Persoonia.|l 



MELASTOMACE.E. Four plants only of this order occur in the 

 collection. 



Tile first is a species of Trisfemma, very nearly related to T. hirtum of M. 

 de Beauvois.^ 



* Juss. Gen. 342. Parinari, Jublet Guian. 514. Petrocarya, Schreb. Gen. 629. 



+ Rehc Tiarh Guinea, p. 54. + f^oyage an Senegal, 175. ^ Gen. Plant. 342. 



U Linn. Soc. Transact. 10, p. 35. H Flore d'Oware, },p. 94, /. 57. 



