Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 455
... clearly , the inner only faintly . These cells were living , the outer portions of the cilia lashing vigorously , and appear- ing as a blurred zone outside the limiting membrane ; the basal quarter , which does not move , shows clearly ...
... clearly , the inner only faintly . These cells were living , the outer portions of the cilia lashing vigorously , and appear- ing as a blurred zone outside the limiting membrane ; the basal quarter , which does not move , shows clearly ...
Page 503
... clearly defined , the parent envelope alters , and the daughter colonies escape , with their constituent groups already fully formed ( Plate XXXVI , C to E ) . Throughout this phase there is extraordinary regularity in the numbers of ...
... clearly defined , the parent envelope alters , and the daughter colonies escape , with their constituent groups already fully formed ( Plate XXXVI , C to E ) . Throughout this phase there is extraordinary regularity in the numbers of ...
Page 552
... clearly defined and considerably smaller , no longer extending into the protoplasmic connections . When young the whole chloroplast is saturated with chlorophyll of a clear , vivid green colour ; with age the colour becomes much lighter ...
... clearly defined and considerably smaller , no longer extending into the protoplasmic connections . When young the whole chloroplast is saturated with chlorophyll of a clear , vivid green colour ; with age the colour becomes much lighter ...
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