21. The ovary is inferior and has only one ovule , with basal placentation. 22. After double fertilization, these ovules will become seeds. 23. The ovary contains two and more ovules or seedbuds. 24. A megasporocyte inside a megasporangium or ovule undergoes meiosis, producing four megaspores. 25. The fertile cone scale has a single inverted ovule developing into a seed. 26. The nucellus ( central portion of the ovule ) only at the base. 27. The more familiar female cones are typically more durable, containing ovules within them. 28. Just below it is a small pore, representing the micropyle of the ovule . 29. Marginal placentation, each pistil bearing one locule, with one to many ovules . 30. Pteridosperms ), megasporangia and perhaps ovules were borne on the surface of leaves.
