Translation 2816
Translation 2816
Translation 2816
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29<br />
is only -on the hypovalve, and -<br />
bears<br />
ridges along its lateral. margins.<br />
Cell measures 35 x 22 M. G. undulatum 5.<br />
2 › The epivalve is smaller than the hypovalve.<br />
oe The epivalve is coniCal, frequently<br />
rounded or truncated at the apex. •<br />
1 Cells are long and thin, almost<br />
twice as long as they are wide,<br />
measuring 35-740 x 22 M (and -even<br />
less). Cross section appearance<br />
is as yet unknown, The hypovalve<br />
is rounded, broader than the spivalve<br />
. (winter form). G. wigrense 6.<br />
2** The epivalve is conical, little<br />
smaller than the hypovalve, with<br />
lateral line convexo-concave .on<br />
the right, undulating on the leet,<br />
The hypoValve is trapezoidal,<br />
usually distinctly retracted below<br />
the longitudinal groove, with<br />
antapical end almost plane, (Cells<br />
•Ialentangular". Winter form.)<br />
G. hiemale 7.
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