of Bennettites gibsonianus , Carr. 
4S3 
EXPLANATION OF THE FIGURES IN PLATES 
XXV AND XXVI. 
Illustrating Graf Solms’ paper on Bennettites. 
PLATE XXV. 
Fig. i. Median longitudinal section through the basal portion of the seed, 
showing the passage of the seed-stalk into the testa, and the small expansion 
within the testa, where the vascular bundle terminates. The entirely black places 
are deposits of opaque pyrites. 
Fig. 2. Transverse section of the periphery of the spadix taken from its lower 
portion where there are no seeds : showing at a a seed-stalk with its central bundle 
4 (should be x) ; at b a number of interstitial organs in close contiguity ; at c the 
continuous external layer of the peripheral zone. At d is a small portion of the 
transverse section of one of the surrounding cataphyllary leaves (see Figs. 1 1 and 
1 2 of this plate). 
Fig. 3. The small expansion of the vascular bundle at the chalazal end of the 
seed which, in the ripe seed, is situated in the hard testa. 
Fig. 4. Diagrammatic longitudinal section of the mature embryo. Designed 
chiefly from Plate XXVI, Fig. 5, with the help of many other preparations. (The 
number is misplaced. The figure referred to lies between Figs. 2, 3, and 5.) 
Fig. 5. Longitudinal section through the testa of two seeds close to one 
another, showing the hard layer and the inner layer on the two sides. The outer 
layer has evidently coalesced with the intermediate tissue. 
Fig. 6. Seed with the nucellus exposed by breaking away the testa, seen 
obliquely from behind, so that the basal depression and the lateral furrows 
radiating from it are brought into view. 
Fig. 7. Copy of a figure of Carruthers (pi. 59, fig. 1) ; oblique tangential 
section through the entire spadix, showing the seed-stalks (cords) obliquely cut 
through, and in the upper part the seeds. 
Fig. 8. Exact representation of the basal portion of the preparation in Fig. 7 : 
a new drawing by Mr. Berjeau of London, showing the interstitial organs between 
the seed-stalks and the continuous outer layer furnished with indentations ; at a 
indications of the areolae which answer to the indentations. The clear roundish 
patch above this spot represents an oblique section passing quite through the 
marginal portion of the cushion-like termination (‘ cushion ’) of the shoot, from 
which the seed- stalks spring (2/1). 
Fig. 9. Copy of fig. 3 on pi. 59 of Carruthers’ work, giving a not quite radial 
longitudinal section of the entire spadix. The cushion-like termination of the 
shoot from which the seed-stalks spring is particularly well shown. 
Fig. 10. New and perfectly accurate drawing, by Mr. Berjeau of London, of 
the basal portion of Fig. 9, showing the attachment of the seed-stalks, and 
especially that of the continuous external layer of the entire spadix to the cushion- 
like extremity of the shoot. The indentations of the outer layer answering to the 
superficial areolation are very plainly seen (2/1). 
