50 APPENDIX. 



very dissimilar sestivation of the corolla and other distinct features^ 

 the separation of Solandra viridiflora from this genus, as pro- 

 posed by me under the name of Dyssochromaj has been acknow- 

 ledged by M. A. DeCandoUe in the Appendix (Prod. xiii. 689)^ 

 although they are combined together in the body of the work. 

 Edozoma also, having a corolla with an imbricated sestivation, 

 and which I have shown to be allied to Juanulloa^ is also placed 

 among the Datnre(2y but for what reason is not explained : it has 

 not the smallest relation with Datura. I shall at some future 

 time conclude the remarks I have to make on Datura and the 

 genera allied to it, which I consider distinct, but which M. Dunal 

 regards as mere sectional divisions of that genus. 



Many objections may be made to M, DunaFs subtribe of 

 Hyoscyame(2y formed only of the genera Hyoscyamus and Sco- 

 polia : this subtribe I have excluded from true ^olanacea on ac- 

 count of the decided sestivation of the corolla. In the generic 

 character of Hyoscyamus^ this feature is represented as being 

 plicated, not imbricated, and the description of the mode of pla- 

 centation is quite at variance with my own observation ; indeed 

 the entire generic character given in the ^ Prodromus ^ (p. 546), 

 is a copy, verbatim, from the text of Dr. Putterlich in ^ Nees's 

 Gen. PI. Flor. Germ.^ In another place {huj.voLApp, p. 10) I 

 have shown that this description does not accord with the very clear 

 and analytical details exhibited in the accompanying plate : the 

 aestivation of the border, said to be plicate, is distinctly deli- 

 neated as being quincuncially imbricate in figs. 3. and 21, and 

 there is no indication of any plicature of the border in any of the 

 other several figures of the corolla : the placentae are stated in 

 the text of that work, and of the ^ Prodromus,^ to be inserted on 

 the dissepiment by a linear dorsal line, while the figures 19. and 

 28. exhibit broad lunated placentae projecting into the cell, con- 

 nected with a short membrane that emanates from the axis of 

 the dissepiment : I find neither of these statements to accord 

 with what I have seen in Hyoscyamus pictuSy of which species I 

 have examined scores of ovaria and capsules, in a living state, 

 where I have invariably found the placentae to be thick and 

 fleshy, and completely adnate to the dissepiment. I have also, 

 in the work above referred to, directed attention to the striking, 

 fleshy, epigynous gland, which has been quite unnoticed by pre- 

 ceding observers, and it is singular that so remarkable a feature 



should have been omitted in the * Prodromus.^ The genus Sco- 

 polia^ as enlarged by M. Dunal, is divided into four sections, 

 Datoray Physochlana, Anisodus and Scopolia^ groups which ap- 

 pear to me all generically distinct. Datora evidently belongs to 

 Hyoscyamus rather than to this genus. In Scopolia, judgin 

 from the plants I have seen growing in Kew Gardens, the inflo- 





