Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 448
... colonies with developing or mature oospores . Both asexual and sexual colonies are globose when young ( Plate XVI , fig . A ) , the polar axis only slightly longer than the equatorial , but the sexual colonies often become considerably ...
... colonies with developing or mature oospores . Both asexual and sexual colonies are globose when young ( Plate XVI , fig . A ) , the polar axis only slightly longer than the equatorial , but the sexual colonies often become considerably ...
Page 459
... colonies was found associated with V. aureus ( Plate IX , fig . A ) . From Brakpan no sexual colonies were obtained . 5. From Sedudu , Linyanti River , Bechuanaland Protectorate . In most of the vleis , etc. , examined in this district ...
... colonies was found associated with V. aureus ( Plate IX , fig . A ) . From Brakpan no sexual colonies were obtained . 5. From Sedudu , Linyanti River , Bechuanaland Protectorate . In most of the vleis , etc. , examined in this district ...
Page 532
... colonies containing both asexual daughter colonies and either sperm globoids ... sexual cells . At the height of its growth , under favourable conditions it ... colonies are mostly over 1.5 mm . in equatorial diameter . The sexual ...
... colonies containing both asexual daughter colonies and either sperm globoids ... sexual cells . At the height of its growth , under favourable conditions it ... colonies are mostly over 1.5 mm . in equatorial diameter . The sexual ...
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