. Elementary botany. Botany. Pine seed, section rif. sc, seed coat; ", remains of nu- cellus; end, endosperm ( = female gametophyte); cmb, embryo = young spo- roph\"te. Seed coat and nucellus = remains of old sporophyte. Fig. zfn- Embryo of white pine removed from seed, showing several cotyle- dons. Fig. 364. Pine seedling just emerging from the ground. have two integuments, but the outer integument of each has become pro- Uferated into scales \\hich arc consolidated. In this proliferation of the outer integument it is thrown off from the ovule so that it only remains attached to one
. Elementary botany. Botany. Pine seed, section rif. sc, seed coat; ", remains of nu- cellus; end, endosperm ( = female gametophyte); cmb, embryo = young spo- roph\"te. Seed coat and nucellus = remains of old sporophyte. Fig. zfn- Embryo of white pine removed from seed, showing several cotyle- dons. Fig. 364. Pine seedling just emerging from the ground. have two integuments, but the outer integument of each has become pro- Uferated into scales \\hich arc consolidated. In this proliferation of the outer integument it is thrown off from the ovule so that it only remains attached to one side and the larger part of the ovule is thus left with only ont- integument. This view is supported by the fact that in gingko, for example (anrdher gymnosperm), the outer integument (the "collar") sometimes proliferates into a leaf. 's view is, therefore, not very different from the second one mentioned 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 Atkinson, George Francis, 1854-1918. New York : H. Holt
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