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6.7<br />
6.7 5hool of the monocotyledon &melc showing irs green<br />
leaf-like phyllocfades. These represent flattened shoots of<br />
limircdfTOwth which :lre de\'doped from buds borne: in the:<br />
axils 0 SC:l!e leaves siruated on the stt'IllS (J) which are<br />
cvlindrical.<br />
122<br />
Main stcm<br />
6.8 TS of the Slem of the: dicotyledon UJslIurillu. The<br />
s(cm of this nitrogen-fixing plam bears only scale: lc:ave:I<br />
and the phmos}'nthcdc function of rhe plam is assumed by<br />
the xcromorphic stem. This shows halr-lined grooves (1) in<br />
which stom:lfa occur, and chlorenchyrna (1) 31 the: margins<br />
of the grooves. The epidermiS has a rhi,k I:utidc: and traCTS<br />
of sclerenchyma fibres (3) occur both bypodcrrnally and<br />
internally. Kale the ring of vascular hundles (4). (LM x<br />
115.)<br />
1 Hm·lincd grooves<br />
2 Chlorcnchyma<br />
3 Sclerem;hyma fibres<br />
4 V:lSclllar bundles<br />
6.9 Several large sjl
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