Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 430
... collected by Mr. Douglas Simpson in 1924. It is apparent that Volvox flourishes abundantly in Africa , and its absence from earlier collections is a little difficult to understand . We , like many of our predecessors , realise that ...
... collected by Mr. Douglas Simpson in 1924. It is apparent that Volvox flourishes abundantly in Africa , and its absence from earlier collections is a little difficult to understand . We , like many of our predecessors , realise that ...
Page 436
... collected Volvox . An accident unfortunately happened to the material and all the Volvox perished before it could be examined . In July 1930 , however , Miss Stephens and one of us were able to revisit the vlei and we found Volvox swarm ...
... collected Volvox . An accident unfortunately happened to the material and all the Volvox perished before it could be examined . In July 1930 , however , Miss Stephens and one of us were able to revisit the vlei and we found Volvox swarm ...
Page 512
... collected and preserved at each visit to the pool . It must be emphasised that this does not pretend to be the full history of the phytoplankton , since , as the collecting was done entirely with a view to the study of Volvox , no ...
... collected and preserved at each visit to the pool . It must be emphasised that this does not pretend to be the full history of the phytoplankton , since , as the collecting was done entirely with a view to the study of Volvox , no ...
Contents
Observations on the Genus Volvox in Africa By FLORENCE RICH | 429 |
Introduction | 439 |
Volvox Rousseletii G S West | 450 |
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Common terms and phrases
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