Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 532
... larger is one from S. W. Africa , V. amboensis , Rich and Pocock ( loc . cit . , p . 462 ) . West ( 1918 , p . 2 ) remarks on the marked ovoid shape character- istic of the mature sexual colonies as opposed to the " globose " form of ...
... larger is one from S. W. Africa , V. amboensis , Rich and Pocock ( loc . cit . , p . 462 ) . West ( 1918 , p . 2 ) remarks on the marked ovoid shape character- istic of the mature sexual colonies as opposed to the " globose " form of ...
Page 561
... larger than the majority , but in most cases no difference between the component cells could be detected before inversion ( cf. Plate XLI , G , H ) . Very soon after completion of inversion , however , they become conspicuous . In V ...
... larger than the majority , but in most cases no difference between the component cells could be detected before inversion ( cf. Plate XLI , G , H ) . Very soon after completion of inversion , however , they become conspicuous . In V ...
Page 613
... larger of these small colonies measured 284 x 292 μ , and contained a single large daughter , 151 x 155 μ , rotating within it . Hence it was concluded that these beautiful little spheroids were the product of the germina- tion of ...
... larger of these small colonies measured 284 x 292 μ , and contained a single large daughter , 151 x 155 μ , rotating within it . Hence it was concluded that these beautiful little spheroids were the product of the germina- tion of ...
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