Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 486
... connections continue to show distinctly in the lobes as they fold back ( fig . 2 , M , and Plate XXVII , B , C ) ... connections between neighbouring cells , yet in living unborn embryo colonies such connections are readily visible . In ...
... connections continue to show distinctly in the lobes as they fold back ( fig . 2 , M , and Plate XXVII , B , C ) ... connections between neighbouring cells , yet in living unborn embryo colonies such connections are readily visible . In ...
Page 556
... Connections . - The protoplasmic connections be- tween adjacent cells probably originate in the incomplete division of the cytoplasm during the division of the gonidium - while the greater part of the cytoplasm rounds off round each ...
... Connections . - The protoplasmic connections be- tween adjacent cells probably originate in the incomplete division of the cytoplasm during the division of the gonidium - while the greater part of the cytoplasm rounds off round each ...
Page 557
... connections become progressively more attenuated and lose their green colour . In life , in normal conditions , the protoplasmic connections are usually sufficiently obvious , but in fixed material it is often a very different matter ...
... connections become progressively more attenuated and lose their green colour . In life , in normal conditions , the protoplasmic connections are usually sufficiently obvious , but in fixed material it is often a very different matter ...
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