. Carnegie Institution of Washington publication. CAMPBELL W&* bl 21 bl .;*...-'â **.â¢. 23 A£- 25 22 bl 28 2G 27 ' bl 3 " 29 3 â V ⢠-_ 30 .V. 21-29. Spermatogenesis in Ophioglossum pendulum. X 950; 21 shows 34-37 spermatocyte before final nuclear division, with two blepharoplasts, bl; 22, 23, nuclear spindle from side and pole; 24-29, development of spermatozoid; n, nucleus of spermatozoid; c, cilia; u, protoplasmic vesicle. 30-32. Three stages in development of archegonium of O. pendulum. X 275. b, basal cell; nl, n-, neck canal cells. 33. Venter of archegonium showing apparently
. Carnegie Institution of Washington publication. CAMPBELL W&* bl 21 bl .;*...-'â **.â¢. 23 A£- 25 22 bl 28 2G 27 ' bl 3 " 29 3 â V ⢠-_ 30 .V. 21-29. Spermatogenesis in Ophioglossum pendulum. X 950; 21 shows 34-37 spermatocyte before final nuclear division, with two blepharoplasts, bl; 22, 23, nuclear spindle from side and pole; 24-29, development of spermatozoid; n, nucleus of spermatozoid; c, cilia; u, protoplasmic vesicle. 30-32. Three stages in development of archegonium of O. pendulum. X 275. b, basal cell; nl, n-, neck canal cells. 33. Venter of archegonium showing apparently a ventral canal cell, 0. n, one of the nuclei of the neck canal cell. X 650. 44. 45, 46-48 Spermatogenesis in B. virginianum; 38-41, in Kaul/ussia; 42, 43, in Danaea. All X 950. Nearly ripe spermatozoids of Angiopteris. X 950. n, nucleus; bl, blepharoplast; c, cilia; u, vesicle. Nearly ripe archegonium of Danaa, showing apparent ventral canal cell, v. Recently fertilized egg-cells of Danaa. sp, spermatozoid (?) within the 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1910, bookyear1911
