Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 435
... obtained from the Ussangu Desert did really belong to the same species as the asexual colonies collected in Southern Rhodesia , and we considered that if living material could be obtained from the 66 * The present authors , however ...
... obtained from the Ussangu Desert did really belong to the same species as the asexual colonies collected in Southern Rhodesia , and we considered that if living material could be obtained from the 66 * The present authors , however ...
Page 476
... obtained , but , when next formed , the pool had a longer existence and more advanced stages of the species were obtained in the later collec- tions . These proved truly startling - V . Rousseletii , previously regarded as an unusually ...
... obtained , but , when next formed , the pool had a longer existence and more advanced stages of the species were obtained in the later collec- tions . These proved truly startling - V . Rousseletii , previously regarded as an unusually ...
Page 615
... obtained from Volvox vleis and strained , placed in the sun . ( 4 ) Oospores placed in pond - water plus a small quantity of culture solution ( Uspenski and Uspenskaja , 1925 , p . 397 ) . To prevent overheating and to reproduce as far ...
... obtained from Volvox vleis and strained , placed in the sun . ( 4 ) Oospores placed in pond - water plus a small quantity of culture solution ( Uspenski and Uspenskaja , 1925 , p . 397 ) . To prevent overheating and to reproduce as far ...
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