Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 552
... single large chloroplast consisting of ( 1 ) a massive , saucer - shaped portion filling the broad base of the plastid and extending into the protoplasmic connecting strands , and ( 2 ) a broad , strap - shaped portion which extends ...
... single large chloroplast consisting of ( 1 ) a massive , saucer - shaped portion filling the broad base of the plastid and extending into the protoplasmic connecting strands , and ( 2 ) a broad , strap - shaped portion which extends ...
Page 604
... single spermatozoid . Janet , as is only logical , extends the homology to the oosphere , regarding it as a colony in which cell- division has been partially or entirely suppressed . He considers that either the content of the ...
... single spermatozoid . Janet , as is only logical , extends the homology to the oosphere , regarding it as a colony in which cell- division has been partially or entirely suppressed . He considers that either the content of the ...
Page 630
... single large zoospore . Occasionally there have been seen zoospores containing more than one ( up to four ) nuclei ... single zoospore is formed , is it a result of reduction division or not ? If not , then it is presumably formed from a ...
... single large zoospore . Occasionally there have been seen zoospores containing more than one ( up to four ) nuclei ... single zoospore is formed , is it a result of reduction division or not ? If not , then it is presumably formed from a ...
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