The New Phytologist, Volume 3Sir Arthur George Tansley Academic Press, 1904 - Botany |
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Common terms and phrases
Abietineæ Alga Anabaena Angiosperms appear archegonia become biologic forms Botanical bracts characters colour commutatus cones collected conidia conidiophores considerable contents described division Embryo Embryo-sac mother-cell exine Ferns fertilisation filament flowers fungus gametes gametophyte genus germination grains granules Gymnosperms halophytes heterocysts hordeaceus infection inner inoculated leaves internodal cells intine later layer leaf leaf-trace longitudinal section male material collected membrane morphology mycelium nitrogen nodal node nucellus nucleus number of chromosomes observed occur Oidium organs ovule ovule collected parasitic parthenogenesis PHYTOLOGIST plants Podocarpus pollen mother-cells pollen-chamber pollen-grains powdery Oidium-patches present probably produced prothallial cells prothallus protoplasm Pteris reduction rhizome seed seen shewing side species specimens spindle sporangium spores sporophyll stage starch Stigmarian rootlet strands structure substance succulent synapsis takes place tangential Taxodium thallus thickening Torreya californica tracheides transverse section tube vascular vegetative cells wall whilst xerophytic young zoospores
Popular passages
Page 105 - A Manual and Dictionary of the Flowering Plants and Ferns. By JC Willis, MA, Director of the Royal Botanic Gardens, Ceylon,
Page 32 - to embrace those Palaeozoic plants with the habit, and much of the internal organisation of Ferns, which were reproduced by means of seeds. At present, the families Lyginodendrese and
Page 22 - showing that some at least of the Carboniferous Ferns followed the same course of development as their recent allies. The agreement with corresponding stages in the development of Fern-prothalli at the present day, leaves little doubt that in this Carboniferous Fern also the spores produced the sexual generation in the way familiar to us. It
Page 156 - their detailed functional relations to one another and to their inorganic surroundings. These indeed are topics on which our knowledge is of the most fragmentary description, about which we have still practically everything to learn. It is a much more difficult, as it is undoubtedly a much higher task, than the descriptive one. It
Page 153 - to suggest that the death of the entering hyphae is not due so much to starvation as to some poisonous substance emitted by the cells
Page 39 - Lesage, Influence du bord de la mer sur la structure des feuilles, Comptes rendus,
Page 32 - and Medulloseae may be placed, with little risk of error, in the new class, Pteridospermae.
Page 52 - flowers of Hydrangea and the terminal flowers of the Feather-hyacinth or Muscari. There is also
Page 25 - by division of its original single nucleus, but by the migration through the wall of the nucleus of a
Page 38 - The work of Molisch carries with it the greatest conviction and leads one to conclude that photo-synthesis can exist to a small degree apart from the living cell. One may further hazard the hypothesis that this function is correlated with some machinery more complex than an enzyme but much less complex than a complete protoplasmic unit.