420 ON THE FEMALB FLOWER AND FRUIT OF 



Tab. 23 (XXIV). 



Fig. 1. A ripe perioarpium, of the natural size, the calyx, braoteae aad apex 

 of tlie column being deciduous. 



Fig. 2. Tlie same divided vertically, and showing tlie thickness of the 

 densely-fleshy and deeply-furrowed covering, and also that the whole of the 

 ovarial cavity is above the insertion of braoteae and calyx. 



Tab. U (XXV). 



Fig. 1. A small portion of the wall of two adjoining cavities, the surfaces 

 covered with numerous seeds, all of equal size : — magnified 20 diameters. 



Fig. 2. A seed with its funiculus, of which the lower erect portion is filiform, 

 the recurved upper half being of the same texture, colour and surface witli the 

 seed, wliioh it somewhat exceeds in thiclvuess : — magnifled 100 diameters. 



Fig. 3. Tlie same divided longitudinally, to show the structure of the seed 

 (according to Mr. Bauer), and that tlie enlarged apex of the funiculus is solid : 

 — magnified 100 diameters. 



Fig. 4. Tlie nucleus of the seed taken out of its thick nut-like outer cover- 

 ing : — magnified 100 diameters. 



Fig. 5. The same nucleus, whose membranous coat is separated by pressure, 

 338] to show the albumen: — magnified 100 diameters. 



Fig. 6. The denuded loosely-cellular albumen. 



Fig. 7 ■ A portion of the albumen, exhibiting the embryo, its surface and 

 lateral origin, according to Mr. Bauer: — magnifled 100 diameters. 



Fig. E.. Br. is a longitudiual section of the albumen, exhibiting ft. Brown's 

 view of the origin, form, and surface of the embryo. 



Tab. 25 (XXVI). 



Fig. 1. A branch of the Fiiis, on which are four very young buds of Rafflesia 

 Arnoldi : — natural size. Of these, 



a, (not separately figured) is merely a very slight swelling, caused by the 

 nascent parasite, but before its parts are distinguishable. 



A. (also separately figured, vertically divided and moderately magnified), the 

 youngest parasite whose parts are distinguishable, deeply seated, entirely en- 

 closed, and before its cortical covering corresponds with it in form. 



B. (in hke manner separately figured, divided and magnified), in which the 

 parasite is entirely enclosed in its reticular covering. 



C. In which the reticular covering has burst, vertically divided and magni- 

 fied. 



HYDNORA AFRIOANA. 



Tab. 26 (XXVII). 



Fig. 1. A flower of Uydiiora africana, with its very short base, 

 ig. 2. The same longitudinally divided : — both of the natural size. 



