Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 454
... colonies up to 13 in number . Colonies large - at about this time the largest colonies ( over 2 mm . in diameter ) were seen . B. 11th January 1931. From a culture derived from the above : sexual phase at its height , male colonies ...
... colonies up to 13 in number . Colonies large - at about this time the largest colonies ( over 2 mm . in diameter ) were seen . B. 11th January 1931. From a culture derived from the above : sexual phase at its height , male colonies ...
Page 488
... colony , already free , measuring 58 μ in diameter and composed of 128 cells , the majority of the cells measured 10 μ , while a few at one end were smaller . Such " dwarf " colonies appear to be male colonies in which nearly all the ...
... colony , already free , measuring 58 μ in diameter and composed of 128 cells , the majority of the cells measured 10 μ , while a few at one end were smaller . Such " dwarf " colonies appear to be male colonies in which nearly all the ...
Page 517
... male 740 × 880 μ . B. Male and female colonies , the latter with large scattered oospheres ; the male colony in B2 typically egg - shaped . In both males all the cells in the posterior part of the colony are developing into sperm ...
... male 740 × 880 μ . B. Male and female colonies , the latter with large scattered oospheres ; the male colony in B2 typically egg - shaped . In both males all the cells in the posterior part of the colony are developing into sperm ...
Contents
Observations on the Genus Volvox in Africa By FLORENCE RICH | 429 |
Introduction | 439 |
Volvox Rousseletii G S West | 450 |
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Africa algae antheridium antheridium mother-cells appear asexual colonies aureus Cape Flats capensis cell-division chloroplast cilia coenobia coenobium collected complete connecting strands containing culture daughter colonies diameter dioecious division elongated embryo embryo colonies endospore enlargement equatorial escape Eudorina eyespot female colonies gelatinous germination globator gonidia gonidium hollow inversion Juveniles Kimberley Kuschakewitsch large number latter Linyanti Linyanti River living material lobes M. A. P. Neill male colonies methylene blue monoecious N'gamo nucleolus nucleus number of cells number of daughter observations occasionally oospheres oospores phase phialopore phytoplankton Plate XVIII pool pore posterior pole protoplasmic connections protoplast pyrenoid reproductive cells Rich and Pocock Rietfontein ripe oospores Rotifers rounded seen sexual colonies Shaw slightly smaller somatic cells species of Volvox sperm bundles sperm globoids spermatozoids spherical spines spore stained surface view usually vacuoles vesicle vleis Volvox africanus Volvox gigas Volvox Rousseletii wall young colony