The Evolution of Plant Life: Lower FormsMethuen & Company, 1891 - 242 pages |
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Page 20
... attach- ment ; then , bending down the fruit - like body , it breaks it off and bears it away in triumph to the nest . All the fruit- like bodies do not ripen at once , but successively , so that the ants are kept about the young leaf ...
... attach- ment ; then , bending down the fruit - like body , it breaks it off and bears it away in triumph to the nest . All the fruit- like bodies do not ripen at once , but successively , so that the ants are kept about the young leaf ...
Page 77
... attached to it ; w ' , w " , first roots of comes directly in contact with the W the asexual stage ; h , root - hairs of prothallus oosphere , without the intervention of ( x about 3 ) . ( From a stigma . Prantl , after Sachs . ) Other ...
... attached to it ; w ' , w " , first roots of comes directly in contact with the W the asexual stage ; h , root - hairs of prothallus oosphere , without the intervention of ( x about 3 ) . ( From a stigma . Prantl , after Sachs . ) Other ...
Page 89
... attached by one side to aquatic plants ; others are attached in clusters by simple or branched gelatinous stalks ; others again occur in immense numbers enclosed in a common gelatinous envelope . The Diatoms , like the Mycetozoa , form ...
... attached by one side to aquatic plants ; others are attached in clusters by simple or branched gelatinous stalks ; others again occur in immense numbers enclosed in a common gelatinous envelope . The Diatoms , like the Mycetozoa , form ...
Page 92
... attaching to the present group consists in the fact that from it all the higher forms of the Vegetable Kingdom have been derived . Some of the species are permanently motile , others always passive , while a considerable number exhibit ...
... attaching to the present group consists in the fact that from it all the higher forms of the Vegetable Kingdom have been derived . Some of the species are permanently motile , others always passive , while a considerable number exhibit ...
Page 102
... attached to other plants , twigs , etc. , in clear fresh water . Most of the species included in the present class inhabit fresh water , but a few occur in brackish water , or in the sea . As a rule the plants are bright green , but in ...
... attached to other plants , twigs , etc. , in clear fresh water . Most of the species included in the present class inhabit fresh water , but a few occur in brackish water , or in the sea . As a rule the plants are bright green , but in ...
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Common terms and phrases
alga algæ 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 hyphæ 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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