. A manual of botany. Botany. FORMATION OF CELLS—TISSUES 309 endosperm of Plimierogams. When this takes place, the nuclei become arranged in a single layer over the internal surface of the megaspore ; protoplasm aggregates round each nucleus, and a common cell-wall is formed between each two adjacent cells, separating them from each other. Their surface which is towards the cavity of the megaspore remains for a little while naked, but soon they secrete each for itself a cell- wall over it, thus forming a peripheral layer of closed cells round the canty of the megaspore. FlO. 665. FiCf. P
. A manual of botany. Botany. FORMATION OF CELLS—TISSUES 309 endosperm of Plimierogams. When this takes place, the nuclei become arranged in a single layer over the internal surface of the megaspore ; protoplasm aggregates round each nucleus, and a common cell-wall is formed between each two adjacent cells, separating them from each other. Their surface which is towards the cavity of the megaspore remains for a little while naked, but soon they secrete each for itself a cell- wall over it, thus forming a peripheral layer of closed cells round the canty of the megaspore. FlO. 665. FiCf. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Green, J. Reynolds (Joseph Reynolds), 1848-1914. London, J. & A. Churchill
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