Figure 12. Transverse section through the basal portion of an ovulate 
strobilus, just below the region of coalescence of the ring of woody 
bundles in the medullated portion of the strobilar axis. “10. Peel 
52, Specimen 42608. 
Ficure 13. Transverse section through the same specimen showing 
three ovules, one (upper right) broken in this peel, Poorly preserved 
sclerotesta and sarcotesta not yet differentiated. 10. Specimen 
42603, 
Fieurb 14, Sagittal section through a staminate inflorescence showing 
aw ° . ee, A ° . 
seven strobili, the middle one showing the  siphonostelic’’ axis of the 
strobilus. ~ 5. Specimen 42586. 
Fiaurt 15. Sagittal section through another staminate inflorescence 
with three strobili. The one to the right showing the axis of the strob- 
ilus and the one to the tar left with masses of pollen. 5. Specimen 
42582. 
Fiaure 16. ‘Transverse section through a staminate strobilus bearing 
a dense mass of pollen in the center. The pollen represents three 
sé ° y _ . 
stamens’’ (eighteen pollen-sacs). 10. Specimen 42581. 
Fieurr 17. Diagonal section through a staminate strobilus showin 
s gs £ 
pollen-sacs crowded with pollen. “10. Specimen 42585. 
Fraure 18. Pollen-sacs of the specimen shown in figure 17. 64, 
Fiaurr 19. A single winged pollen-grain, not fully developed, dorsal 
view. 250. Specimen 42585. 
Ficure 20. Two pollen-grains, dorsal view. Multicellular gameto- 
phyte indicated by presence of cell walls in the central body. * 250. 
Specimen 42585. 
Fieurk 21. Cordaites cf. crassus Grand’ EKury. 
Portion of a leaf in vertical section, showing the parallel mesarch 
vascular strands and the sclerenchymatous tissues near the upper and 
lower surfaces. 10. Specimen 43686. 
Figurk 22. Cordaicarpus spinatus Graham. 
Side view (slightly diagonally) through a seed, showing the spinous 
sclerotesta and the fleshy sarcotesta. Cut sagittally beyond the mi- 
cropyle. » 5. Specimen 39805. 
Figure 23. Cordaicarpus sp. 
A “‘front’’ view of a broken seed showing the endosperm body in the 
center, and the sclerotesta and sarcotesta on the outside. The round 
body near the upper left is an unnamed seed. “5. Specimen 39805. 
All figures, except 10 and 23, are from photographs of cellulose 
nitrate peels. These heliotype reproductions may be examined with 
a hand lens. 
[ 20 | 
