and on the Structure of Hydnora airicana. 



Fig. 7- Transverse section of the flower, to show the torn, and mrfe* of tl„ « 



which the three primary divisions are opposite to the lobes of the column:. 



minea) : — magnified in the same degree with tig. 1 . 

 Fig. 8. A portion of the stigma, which shows its composition. 

 Fig. 9. A transverse section about the middle of the same:— both DM what 



more than figs. 2 and 3. 

 Fig. 10. A vertical section of the stigma, showing that the divisions of its nun* 



quite through to the cavity of the ovarium, separating it into in equal numb 



lamellae, from the inner terminations of which the placenta) are pendulous :— n 



highly magnified than the preceding figures. 

 Fig. 11. A small portion of the same, still more highly magnified. 

 Fig. 12. A transverse section, more highly magnified than fig. 11, with its densely crowded 



ovula arising from every part of its surface. 

 Fig. 13. Three ovula more highly magnified than fig. 12, to show the pediceUtU Of 



nuated base and depressed or perforated apex. 



Tab. XXIX. 



A ripe fruit (fig. 1.), with the stock (the root of the supposed Euphorbia, n. 

 the decumbent angular branched stems of the parasite, from the thickened trunk 

 of which the ripe fruit originates at fig. 2, and from a branch of which a \cr\ 

 young flower-bud proceeds :— natural size. 



Tab. XXX. 



Fig. 1. The same ripe fruit vertically divided, with the prostrate thickened ten. of tin 

 parasite and the root of the supposed Euphorbia, whose woody fibres and * 

 appear to penetrate deeply into the substance of the thickened stem :-natural 



size. 

 Fig. 2. A portion of the fruit transversely divided. 

 Fig. 3. A transverse section of one of the placenta,, with the ripe seeds :-shghtlv ma,- 



nified. 



Fig. 4. Two seeds, more highly magnified than fig. 3. 



i fir. a anr) vprticallv divided, which exhibits 



Fig. 5. A seed, magnified in the same degree as fig. 4, and vertically 



the albumen more distinctly radiating than I have ever found u. 

 Fig. 6. A seed deprived of its outer coat ^ ^ ^^ 



Fig. 7. The same transversely divided, which, as wen a* 



embryo. 



