Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 492
... gigas . On the existing descriptions , however , it must be regarded as distinct . The resemblance of V. gigas to Pleodorina is certainly very remote ; it is unmistakably much more nearly allied to Volvox than to Pleo- dorina , and ...
... gigas . On the existing descriptions , however , it must be regarded as distinct . The resemblance of V. gigas to Pleodorina is certainly very remote ; it is unmistakably much more nearly allied to Volvox than to Pleo- dorina , and ...
Page 513
... gigas is given . It was found in Pool I only . The third is a very large form of Volvox africanus G. S. West ... gigas . ( b ) Volvox Rousseletii becoming less numerous , V. gigas increasing , sometimes becoming dominant , Sphaerocystis ...
... gigas is given . It was found in Pool I only . The third is a very large form of Volvox africanus G. S. West ... gigas . ( b ) Volvox Rousseletii becoming less numerous , V. gigas increasing , sometimes becoming dominant , Sphaerocystis ...
Page 517
... gigas sp . nov . FIG . A. Group , four large asexual colonies with young embryos and gonidia , and a very young colony ; in the centre an asexual and a mature male colony of V. Rousseletii forma griquaensis ( 602 ) . Dimensions : V. gigas ...
... gigas sp . nov . FIG . A. Group , four large asexual colonies with young embryos and gonidia , and a very young colony ; in the centre an asexual and a mature male colony of V. Rousseletii forma griquaensis ( 602 ) . Dimensions : V. gigas ...
Contents
Observations on the Genus Volvox in Africa By FLORENCE RICH | 429 |
Introduction | 439 |
Volvox Rousseletii G S West | 450 |
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Common terms and phrases
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