Annals of the South African Museum, Volume 16The Museum, 1933 - Natural history |
From inside the book
Results 1-3 of 48
Page 442
section . From the latter it is distinguished by ( 1 ) smaller size of coenobia , which are subglobose to broadly ellipsoid instead of ovoid ; ( 2 ) slightly smaller number of somatic cells ; ( 3 ) sexual colonies always monoecious and ...
section . From the latter it is distinguished by ( 1 ) smaller size of coenobia , which are subglobose to broadly ellipsoid instead of ovoid ; ( 2 ) slightly smaller number of somatic cells ; ( 3 ) sexual colonies always monoecious and ...
Page 466
... smaller . Rousseletii , from Ussangu 880-1200 Small , un- divided . Ovoid ; posterior end more Numerous Globoids 120-150 36-40 μ 29-32 μ spiny asexual . pointed . Rousseletii , from Egypt . -1000 μ As above 2-4 200 μ + As above ...
... smaller . Rousseletii , from Ussangu 880-1200 Small , un- divided . Ovoid ; posterior end more Numerous Globoids 120-150 36-40 μ 29-32 μ spiny asexual . pointed . Rousseletii , from Egypt . -1000 μ As above 2-4 200 μ + As above ...
Page 590
... smaller . The total number of divisions is nearly always nine , resulting in a hollow oblate spheroid , more or less kidney - shaped , as seen in side view , nearly circular in polar view , composed of some 512 cells . Very occasionally ...
... smaller . The total number of divisions is nearly always nine , resulting in a hollow oblate spheroid , more or less kidney - shaped , as seen in side view , nearly circular in polar view , composed of some 512 cells . Very occasionally ...
Contents
Observations on the Genus Volvox in Africa By FLORENCE RICH | 429 |
Introduction | 439 |
Volvox Rousseletii G S West | 450 |
12 other sections not shown
Other editions - View all
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