. Embryogenesis in plants. Embryology. Fig. 23. Lycopodium cermium and L. lateiale A-E, L. ccrnimm. A, Young embryo emerging from the prolhallus, p; a, neck of archegonium; ,s», suspensor;/, foot; I-I, position of first partition wall; /, position of first leaf primordium; /, beginning of tuberous development. B, As before, the tuber is now becoming conspicuously developed. C, An older embryo showing the group of primary awl-shaped leaves, the tuber, with rhizoidal development, the suspensor and foot. D, An embryo in showing the enlarged cells of the foot, containing starch grains. E, An
. Embryogenesis in plants. Embryology. Fig. 23. Lycopodium cermium and L. lateiale A-E, L. ccrnimm. A, Young embryo emerging from the prolhallus, p; a, neck of archegonium; ,s», suspensor;/, foot; I-I, position of first partition wall; /, position of first leaf primordium; /, beginning of tuberous development. B, As before, the tuber is now becoming conspicuously developed. C, An older embryo showing the group of primary awl-shaped leaves, the tuber, with rhizoidal development, the suspensor and foot. D, An embryo in showing the enlarged cells of the foot, containing starch grains. E, An older embryo showing the remarkable tuberous development and the somewhat irregular sequence of leaves. (A, x 200; B, x 140; E, X 23; D, X 27; after Treub). F-H, L. laterale. Tuberous embryos, like those of L. cernuum, showing linear sequence of leaves (/) along the upper surface. H, An older embryo in which the normal leafy shoot has eventually been formed; /% first root. (F, X 11; G, X 8; H, X 3; after Holloway).. 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 Wardlaw, C. W. (Claude Wilson), 1901-. London, Methuen; New York, Wiley
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Keywords: ., bookcentury1900, bookcollectionbiodiversi, booksubjectembryology
