%3 ON THE FEMALE FLOWER AND FRTJIT OF 



3101 SUPPLEMENT. 



To render the account of Bafflesia Arnoldi more com- 

 plete, I shall add the distinguishing characters of the order, 

 tribes, genera and species of Uajflesiacece with which I am 

 acquainted. These characters, which form the chief part of 

 the present supplement, as well as the notes to the original 

 communication, have been written since November last. 



The paper itself is printed as it was read in June 1834, 

 a very few slight alterations, and those chiefly verbal, ex- 

 cepted.' 



' The followiag brief abstract was publislied in the Philosophical Magazine 

 for July, 1834 :~ 



"LiNSEAN Society. 



"June 17. — A paper was read 'On the Female Mower and Fruit of Rrifflena, 

 with Observations on its Affinities, and on the Structure of Hydnora.' By 

 Robert Brown, Esq., V.P.L.S. 



"The author's principal object in this paper is to complete his account of 

 S/jJlesia Arnoldi, the male flower of which he described in a former communi- 

 cation, published in the 13th volume of the Society's Transactions; and, iu 

 connection with the question of its place in a natural arranf;ement, he intro- 

 duces a more detailed description and fijrures of Hydnora africana, than have 

 hitherto been given. The drawings of Raffiesia which accompany the paper 

 are by Francis Bauer, Esq., and those of Hydnora by the late Mr. Ferdinand 

 Bauer. 



"From a comparison of Eafflesia with Hydnora and Cytinus, he is confirmed 

 in the opinion expressed in his i'ormer paper, but founded on less satisfactory 

 evidence, that these three genera (to which Bruyniansia of Blunie is now to be 

 added), notwithstanding several remarkable peculiarities in each, may all be 

 rel'eired to the same natural family ; and this family, named by him Rajlesiacece, 

 he continues to regard as being most nearly allied to Asarince. 



"He does not, however, admit an arrangement lately proposed by M. 

 Endlicher, and adopted by Mr. Lindley, by whom these genera are included 

 in the same natural class wit.h Balanophorea of Richard; an approximation 

 founded on their agreement in the structure of embryo, and on the assumed 

 absence of spiral vessels. On this subject he remarks, that in having a homo- 

 geneous or acotyledonous embryo, they essentially accord, not only with many 

 other plants, parasitical on roots, which it has never been proposed to unite 

 witli them, as Orobanche, &c., but also with Orchidea, their association with 

 ■which would be still more paradoxical. And with respect to the supposed 

 peculiaril.y in their vascular structure, he states that he lias found spiral vessels 

 not only in Eafflesia (in which he had formerly denied their existence), and in 

 Hydnora and Cytinus, but likewise in all the BalanopJiorea examined by him, 

 particularly Cynoraorium and Helosis, as Dr. von Martins had long since done iii 

 Langsdorjia, and Professor Meyer very recently in Hydnora. 



"In his observations on the ovulum of Bafflesia, he gives a view of its early 



