Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 454
... colonies were , however , rare , and were only seen during the early stages of the original 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 were , however , rare , and were only seen during the early stages of the original 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 ...
Page 563
... Daughter colonies 4 to 8 . 23rd March . Mainly sexual . Asexual with 2 to 6 daughters ( Plate XVIII , C ) . 28th March . - Sexual colonies very few . Asexual with 1. to 3 , rarely 4 , daughters . Size much smaller ( Plate XVIII , D ) . The ...
... Daughter colonies 4 to 8 . 23rd March . Mainly sexual . Asexual with 2 to 6 daughters ( Plate XVIII , C ) . 28th March . - Sexual colonies very few . Asexual with 1. to 3 , rarely 4 , daughters . Size much smaller ( Plate XVIII , D ) . The ...
Page 642
... daughter colony showing attachment to parent ( 159 ) . × 30 . F. Living cells from posterior pole of young colony ... colonies ; group including the above with daughter now free , one with 3 daughters showing position whence fourth has ...
... daughter colony showing attachment to parent ( 159 ) . × 30 . F. Living cells from posterior pole of young colony ... colonies ; group including the above with daughter now free , one with 3 daughters showing position whence fourth has ...
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