Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
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Page 523
... 531 531 533 534 535 538 539 543 546 547 548 550 551 552 552 553 554 556 558 559 559 560 • 560 562 562 564 565 · 566 566 566 567 571 • 572 574 Reproduction - continued . Development of Reproductive Cells - continued ( 523 )
... 531 531 533 534 535 538 539 543 546 547 548 550 551 552 552 553 554 556 558 559 559 560 • 560 562 562 564 565 · 566 566 566 567 571 • 572 574 Reproduction - continued . Development of Reproductive Cells - continued ( 523 )
Page 524
Reproduction - continued . Development of Reproductive Cells - continued . A. Gonidium - continued - Results of Inversion Time of Inversion Discovery of Inversion . Daughter Colony · ( a ) Development after Inversion ( b ) Birth B. Male ...
Reproduction - continued . Development of Reproductive Cells - continued . A. Gonidium - continued - Results of Inversion Time of Inversion Discovery of Inversion . Daughter Colony · ( a ) Development after Inversion ( b ) Birth B. Male ...
Page 644
... continued . Series , living , showing inversion up to " Hat " stage . A , 8.20 p.m. Lip curving inwards ( 314 ) . B , 8.55 p.m. Lip at maximum depression ( 315 ) . × 750 . × 750 . C ( from another series ) . Lip straight , pore almost ...
... continued . Series , living , showing inversion up to " Hat " stage . A , 8.20 p.m. Lip curving inwards ( 314 ) . B , 8.55 p.m. Lip at maximum depression ( 315 ) . × 750 . × 750 . C ( from another series ) . Lip straight , pore almost ...
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