Grasses a Handbook for Use in the Field And Laboratory
Grasses a Handbook for Use in the Field And Laboratory
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1 unopeued and 2 opeu anther (xl2). 3, spikelets open and exposing the stamens and stigmas; 4, the pollen escaping and being dusted on to the stigmas ( x about o). Kerncr.
94 MORPHOLOGY OF SPIKELET [CH.
As regards the flower proper, all our British grasses except Anthoxanthum (which has two only) have three stamens ; but many exotic grasses have six stamens, and a few have a large number — even 40. The stamens have slender filaments and large versatile anthers, which dangle from between the pal...eas when the flowers are mature, scattering their clouds of fine pollen in the wind (Fig. 83).
All our ordinary grasses except Nardus — where there is a simple straight hairy style — have two spreading feathery stigmatic plumes, which stand out right and left from between the paleae when the pollen is flying about on the wind. (Fig. 38. ) Much interesting speculation has been expended in attempting to ex- plain the morphological or theoretical significance of the parts of the spike- let of a grass.
What to read after Grasses a Handbook for Use in the Field And Laboratory?
You can find similar books in the "Read Also" column, or choose other free books by H Marshall Harry Marshall Ward to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
1 unopeued and 2 opeu anther (xl2). 3, spikelets open and exposing the stamens and stigmas; 4, the pollen escaping and being dusted on to the stigmas ( x about o). Kerncr.
94 MORPHOLOGY OF SPIKELET [CH.
As regards the flower proper, all our British grasses except Anthoxanthum (which has two only) have three stamens ; but many exotic grasses have six stamens, and a few have a large number — even 40. The stamens have slender filaments and large versatile anthers, which dangle from between the pal...eas when the flowers are mature, scattering their clouds of fine pollen in the wind (Fig. 83).
All our ordinary grasses except Nardus — where there is a simple straight hairy style — have two spreading feathery stigmatic plumes, which stand out right and left from between the paleae when the pollen is flying about on the wind. (Fig. 38. ) Much interesting speculation has been expended in attempting to ex- plain the morphological or theoretical significance of the parts of the spike- let of a grass.
What to read after Grasses a Handbook for Use in the Field And Laboratory?
You can find similar books in the "Read Also" column, or choose other free books by H Marshall Harry Marshall Ward to read onlineMoreLess
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