Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 506
... containing groups at all stages of development characteristic of Chodat's species ; this irregularity of development ... containing 16 cells . 16 99 Each containing 16 cells , each already divided into 8 . Each containing 8 cells ( 13 μ ) ...
... containing groups at all stages of development characteristic of Chodat's species ; this irregularity of development ... containing 16 cells . 16 99 Each containing 16 cells , each already divided into 8 . Each containing 8 cells ( 13 μ ) ...
Page 521
... containing a nearly mature embryo ( 702 ) . B. Large colony of the typical spherical form containing 32 groups of 32 cells each ( 611 ) . C , D. 16 - celled groups from a mature spherical colony in which some of the cells are dividing ...
... containing a nearly mature embryo ( 702 ) . B. Large colony of the typical spherical form containing 32 groups of 32 cells each ( 611 ) . C , D. 16 - celled groups from a mature spherical colony in which some of the cells are dividing ...
Page
... ( containing Palaeontological papers published in conjunction with the Geological Survey ) .— Part 1 , 11 / - ; Part 2 , 7 / - ; Part 3 , 4/6 ; Part 4 , 4/6 ; Part 5 , 2/6 ; Part 6 , 4/6 ; Part 7 , 14 / - ; Part 8 , 8 / - . Vol . V ...
... ( containing Palaeontological papers published in conjunction with the Geological Survey ) .— Part 1 , 11 / - ; Part 2 , 7 / - ; Part 3 , 4/6 ; Part 4 , 4/6 ; Part 5 , 2/6 ; Part 6 , 4/6 ; Part 7 , 14 / - ; Part 8 , 8 / - . Vol . V ...
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