. Embryogenesis in plants. Embryology. Fig. 18. Embryogeny in the Musci A-E, Sphagnum acutifolhim. A, The initial filamentous embryo in longitudinal section. B, Longitudinal walls are being formed. C, D, The young embryo in transverse section, showing the regular pattern of segmentation and the beginning of differentiation. E, Older embryo in showing the beginning of differentiation in the distal region and the marked enlargement of the foot cells. F, Archesporial region in transverse section (A-D, x 240; E, x 100; after Waldner). G-K, Andieaea. G, A. crassinervia. H, K, A. petrophila. St
. Embryogenesis in plants. Embryology. Fig. 18. Embryogeny in the Musci A-E, Sphagnum acutifolhim. A, The initial filamentous embryo in longitudinal section. B, Longitudinal walls are being formed. C, D, The young embryo in transverse section, showing the regular pattern of segmentation and the beginning of differentiation. E, Older embryo in showing the beginning of differentiation in the distal region and the marked enlargement of the foot cells. F, Archesporial region in transverse section (A-D, x 240; E, x 100; after Waldner). G-K, Andieaea. G, A. crassinervia. H, K, A. petrophila. Stages in the embryonic development as seen in ; in K, the differentiation of tissues is taking place in the distal region. J, Cross-section of a young embryo (G, x 220; H-K, x 165; after Waldner). L-O, Pbascum cuspiilatum. L, M, Stages in the embryonic development as seen in N, O, Segmentation pattern as seen in transverse section (after Kienitz-Gerloff). P-R, Anhicliiim phascoides. P, R, Embryos in Q, Embryo in (L-R after Leitgeb.) S, Tortula miiralis. Longitudinal section of archegonium with young embryo (x 160). T, V, Mniiiin liornum. T, Elongated zygote (x 100). V, Filamentous embryo with a two-sided apical cell (x 160). U, Catharinea undu- lata. Two-celled embryo ( x 100); (S-V, after Bishop).. 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
