Natural Order Cucurbitaceae. 



271 



30. 



Fig. 



Fig. 

 Fig. 



Fig. 

 Fig. 



§ 10. Filaments mon-adelphous, connate into a column, which is ca- 

 pitate at the apex, and then bearing the gyrose posticous anthers. 

 Cephalandra (Schrad.). South Africa. 



EXPLANATION OF THE FICxURES. 



1. A tricarpellary 1-celled ovary ; that is, the placentiferous margins 



of the carpellary leaves meeting in the circumference, and bearing 

 their ovules on the walls or parietes of the cell. 

 a. Supposed position of the midrib. b. Placentae parietal. 



2. A tricarpellary 3-celled ovary, the laminae of the carpellary leaves 



folded inwards until they meet in the axis, and there produce 

 ovules. 

 a. Supposed position of midribs. b. Placentae axillary. 



3. An imaginary section of a pepo explanatory of Dr. Arnott's theory 



of its construction ; copied, but with some modification, to render 

 it more explanatory, from his figure in the Encycl. Brit. 



a. Supposed position of the midrib. 



b. The placentiferous margins represented introflexed, reaching nearly 



to the dorsal suture, dividing the carpel into two cells. 



4. Section of the ovary of Coccinia indica ; the calyx divided in the 



line of the partitions of the carpella, by which they are permitted 

 to fall apart. 



5. Section of the same; the parts in situ. 



Obs. — The original is also accompanied by dissections of Mo- 

 mordica Charantia, Trichosanthes anguina, Cucurbita maxima, Coccinia 

 indica, Lagenaria vulgaris, and Mukia scabrella, prepared with the 

 view of showing that sections 7 and 9 are not distinguishable by the 

 characters assigned, the anthers being lobed or entire ; and that, by 

 taking our characters rather from the form of the anthers than the 

 insertion of the filaments, Trichosanthes and Cucurbita might be ad- 

 vantageously placed in the same section, leaving the character taken 

 from insertion available as a generic distinction between them. 



