The Evolution of Plant Life: Lower FormsMethuen & Company, 1891 - 242 pages |
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Page 5
... a seed as the com- mencement of a new individual , we do so only in a restricted sense , remembering the fact that the seed once formed an integral portion of the parent plant , and although eventually REPRODUCTION . 5.
... a seed as the com- mencement of a new individual , we do so only in a restricted sense , remembering the fact that the seed once formed an integral portion of the parent plant , and although eventually REPRODUCTION . 5.
Page 6
... eventually drift into a new cycle of life forms possessing characteristics more or less marked of its own . In this way we may and do get various cycles of individuals which in the end agree only with the primitive form from which they ...
... eventually drift into a new cycle of life forms possessing characteristics more or less marked of its own . In this way we may and do get various cycles of individuals which in the end agree only with the primitive form from which they ...
Page 13
... parent type . This condition of things may continue until eventually the various functions of life are manifested through organs so dissimilar in form from those of the parent , that in the absence of transitional forms , ADAPTABILITY . 13.
... parent type . This condition of things may continue until eventually the various functions of life are manifested through organs so dissimilar in form from those of the parent , that in the absence of transitional forms , ADAPTABILITY . 13.
Page 30
... eventually the protoplasm forms a sac or layer , lining the cell - wall , and filled with watery sap . The central cavity bounded by the protoplasm is called the sap - cavity , which is usually traversed by strands of proto- plasm in ...
... eventually the protoplasm forms a sac or layer , lining the cell - wall , and filled with watery sap . The central cavity bounded by the protoplasm is called the sap - cavity , which is usually traversed by strands of proto- plasm in ...
Page 31
... eventually its surface becomes firmer without developing a distinct wall , as in the case of the cell , and in its interior there usually appear one , two , or several granule - like portions or nucleoli . When fully formed , the ...
... eventually its surface becomes firmer without developing a distinct wall , as in the case of the cell , and in its interior there usually appear one , two , or several granule - like portions or nucleoli . When fully formed , the ...
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Common terms and phrases
alga alg¿ antheridia antherozoids apex apical cell aquatic archegonia asexual mode asexual reproductive axial basidia bearing become belonging branches called carbonic carpogonium cavity cell-division cell-wall cellulose chlorophyll cilia colour colourless conceptacles condition conjugation consists containing Crown 8vo Cryptogams daughter-cells differentiation divided division enclosed epidermis eventually ferns fertilization fibro-vascular bundles filaments flowering formation fungi fungus furnished genera genus germination give origin grow hymenium hypha hyph¿ individual known latter leaf leaves lichens mass megaspores minute mode of reproduction mother-cell motile mycelium numerous oogonia oogonium oophore oosphere parasitic peridium Phanerogams phloem pileus plants Prantl present group produced prothallus protoplasm remains reproductive bodies resting-spores roots septa septum sexual mode sexual organs sexual reproduction single slender species spiral sporangia sporangium spores sporidiola sporocarp sporophore starch stem stomata structure substance superposed cells surface thallus thick thickened tissue transverse trichogyne unicellular usually vascular bundles vegetative portion wall xylem zoospores zygospore
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