Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 454
... culture ; but at the height of development of any one culture colonies about 1300 × 1500 μ or even larger were common . The number of daughter colonies is most often 8 , but varies from 4 to 16 ( see Plate XVIII , fig . A ) . The 8 ...
... culture ; but at the height of development of any one culture colonies about 1300 × 1500 μ or even larger were common . The number of daughter colonies is most often 8 , but varies from 4 to 16 ( see Plate XVIII , fig . A ) . The 8 ...
Page 615
... culture solution ( Uspenski and Uspenskaja , 1925 , p . 397 ) . To prevent overheating and to reproduce as far as possible the conditions of lighting obtaining in the natural habitat , the small glass culture - dishes ( 2 to 4 inches in ...
... culture solution ( Uspenski and Uspenskaja , 1925 , p . 397 ) . To prevent overheating and to reproduce as far as possible the conditions of lighting obtaining in the natural habitat , the small glass culture - dishes ( 2 to 4 inches in ...
Page 637
... Culture III . 17th February . - Oospore material from stock jar put on slides and left to dry ; put on one side for later use . 24th July . Slides placed in dish in water , and the whole placed as in Culture I. -- 7th August . Strained ...
... Culture III . 17th February . - Oospore material from stock jar put on slides and left to dry ; put on one side for later use . 24th July . Slides placed in dish in water , and the whole placed as in Culture I. -- 7th August . Strained ...
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