Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 439
... closely packed * at the posterior pole ( this is true of all three types of colonies ) . The protoplasmic connecting strands are very fine and thread - like ; they do not preserve well , but usually show fairly clearly when stained with ...
... closely packed * at the posterior pole ( this is true of all three types of colonies ) . The protoplasmic connecting strands are very fine and thread - like ; they do not preserve well , but usually show fairly clearly when stained with ...
Page 455
... closely packed , and several show contractile vacuoles ; near the bottom is an undivided gonidium . D and E are from an older colony , living and unstained , slightly more enlarged . The protoplasts are further apart and are becoming ...
... closely packed , and several show contractile vacuoles ; near the bottom is an undivided gonidium . D and E are from an older colony , living and unstained , slightly more enlarged . The protoplasts are further apart and are becoming ...
Page 473
... closely allied to the material from Rietfontein ( Rich and Pocock , 1932 , p . 455 ) , which may be regarded as typical , it yet differed from it in some details . It was thought , therefore , that it might be VOL . XVI , PART 3 . 31 ...
... closely allied to the material from Rietfontein ( Rich and Pocock , 1932 , p . 455 ) , which may be regarded as typical , it yet differed from it in some details . It was thought , therefore , that it might be VOL . XVI , PART 3 . 31 ...
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