Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 451
... posterior end , and a little smaller than the asexual colonies . The sperm bundles are very numerous , and are crowded into the posterior four - fifths of the male coenobium ; they measure from 29 to 32 μ in diameter , and are similar ...
... posterior end , and a little smaller than the asexual colonies . The sperm bundles are very numerous , and are crowded into the posterior four - fifths of the male coenobium ; they measure from 29 to 32 μ in diameter , and are similar ...
Page 455
... posterior poles of a colony , as seen in surface view . B and C are portions of a young middle - aged colony treated with iodine . In B , the connecting strands and cell walls show clearly ; in C , from near the posterior pole the cells ...
... posterior poles of a colony , as seen in surface view . B and C are portions of a young middle - aged colony treated with iodine . In B , the connecting strands and cell walls show clearly ; in C , from near the posterior pole the cells ...
Page 575
... posterior half begins to fold into the anterior half , the infolding starting at the original constriction ( fig . 3 , G ) and gradually extending towards the posterior pole until the whole of the posterior hemisphere is folded into the ...
... posterior half begins to fold into the anterior half , the infolding starting at the original constriction ( fig . 3 , G ) and gradually extending towards the posterior pole until the whole of the posterior hemisphere is folded into the ...
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