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I<br />
6.22 Diagrammatic transverse section of the<br />
lIaseular cambium showing its pancen of<br />
tangential divisions. In A, division has Ql;l;urred<br />
in (he a.mbial mother cdl (yc:llow) which leads<br />
in B to the formation of a phloem initial (blue).<br />
.\1eanwhile, the cambial cdl is again dividing<br />
and gives rise in C to :l xylem initial (roo). The<br />
phloem initial in C is di"iding to form (wo<br />
further initials and a new division (D) is already<br />
mking place in the outermost derivative. In the<br />
mC3nrimc, the cambial cell has funned a furth"'T<br />
xylem initial TOw:lrds (he inside (0), while [he<br />
original initial has also divid",d, so [hat there are<br />
now three xylem initi:lls.<br />
A B<br />
6.21 A and B show tangemial views of a storied and non-storied cambium respcclivcl}"<br />
I)'cllow indicates fusiform and n:d indic:ms ray initials).<br />
A<br />
B<br />
c<br />
o<br />
(<br />
127<br />
6.2\<br />
6.21
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