The Morphology of Chloranthus. 55 
Fig. 8. Transverse section of staminal scale of C. brachystachys. x 27. p.s., 
pollen sacs. 
Fig. 9. Median longitudinal section of young flower of C. officinalis. x55. 
The ovule is apparent and oil cells are present in the staminal scale, br., 
bract; st., staminal scale ; o.c., oil cells ; ov., ovary; p.s., pollen sac. 
Fig. 10. Diagrams of successive transverse sections illustrating vascular 
supply of C. chinensis. A shows one bundle coming off to the bract 
and three bundles to supply the flower. B shows the bract bundle, the 
three strands for the staminal scale and the two small branches coming off 
for the ovary. C shows the three staminal bundles and the single 
strand for the ovary, resulting from the fusion of the two small bundles 
seen in B. hr., bract supply; st., staminal scale supply; ov., supply to 
ovary ; ov 1 ., supply to ovule. 
Fig. 11. Diagrams of successive transverse sections illustrating the vascular 
supply to the flower in C. brachystachys. Lettering as in Fig. 10. 
Fig. 12. Diagram of fruit of C. officinalis in median longitudinal section. The 
embryo is embedded in a mass of endosperm which almost entirely 
occupies the place of the nucellus. emb., embryo; e., endosperm; n., 
remains of nucellus; p., pericarp; i.i., inner integument; o.i., outer 
integument; st., vascular supply to staminal scale ; ov., vascular supply to 
ovule. 
Fig. 13. Median longitudinal section of young embryo of C. officinalis. x455. 
Plate IV. 
All the figures are of C. chinensis. The embryo-sac mother-cell and the cells 
resulting from its division have their nuclei indicated. 
Fig. 14. Youngest ovule in longitudinal section showing first division in 
hypodermal cells. x455. 
Fig. 15. Longitudinal section of slightly older ovule. The integuments are 
present and one of the sporogenous cells was recognisable as the embryo* 
sac mother-cell, x 455. 
Fig. 16. A slightly older ovule showing divisions in the epidermal cells of 
nucellus, a definite sporogenous mass and a laterally derived embryo-sac 
mother-cell, x 455. 
Fig. 17. Longitudinal section of nucellus of more mature ovule. x455. 
Embryo-sac mother-cell of full size. 
Fig. 18. Longitudinal section of nucellus showing the row of four macrospores 
formed, x 455. Of these the second will probably develop as the embryo* 
sac. 
Fig. 19. Longitudinal section of nucellus of older ovule. x455. The lowest 
segment of the mother-cell is developing into the embryo-sac. 
Fig. 20. Embryo-sac developing from the uppermost segment of the mother¬ 
cell. x455. 
Fig. 21. Two young embryo-sacs evidently derived from two cells of the 
tetrad, x 455. 
Fig. 22. Group of antipodal cells from a mature embryo-sac. x 680. 
Fig. 23. Egg apparatus from a mature embryo-sac. x 680. 
