584 
Fig. 21. 
Fig. 22. 
Fig. 23. 
Fig. 24. 
Fig. 25. 
Fig. 26. 
Fig. 27. 
Figs. 28 
DEVELOPMENT OF THE OVULE OF CHRISTISONIA. 
Upper portion of the embryo-sac of C. neilgherrica, Gardn., with the 
embryo beginning to grow out. X 340. 
The same. X 520. 
Longitudinal section of the endosperm of C. subacaulis, Gardn., 
showing the developing embryo. x 520. 
Section of a young two-celled embryo of C. subacaulis, Gardn. 
x 350. 
An embryo of the same with two transverse divisions in its upper cell. 
x 350. 
An older stage of the same with several transverse and one or two 
longitudinal divisions in the upper cell. x350. 
Prate XXII. 
Transverse section of a seed of C. subacaulis, Gardn., showing the 
different parts, from the testa on the outside to the embryo in the 
centre. X 100. 
& 29. Transverse sections of embryos of C. subacaulis, Gardn., showing 
the longitudinal walls in two directions. Xx 420. 
Figs. 30-38. Further stages in the differentiation of the various parts of the 
Figs. 31, 
embryo of C. subacaulis, Gardn. 
82, 36, 38: X390. Figs. 30, 33, 34, 35, 37: X420. 
