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Translation 2816

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8<br />

usually brownish violet. Thiophilic<br />

species. Cells measure 12-15 x 7-8 ^1 •<br />

,haseolus 3.<br />

(See also under IV.) .. Cr. n<br />

2. Cells are obovoid (to approximately ellipsoidal).<br />

qCj<br />

Posterior end is only slightly narrowed,<br />

And it either is rounded or has a very<br />

slightly pronounced corner. Cells are mèdiumsized.<br />

-^Ventral and dorsal edges are strongly,<br />

and nearly uniformly, arched, rendering the<br />

cells broadly ovoid. Anterior end is bevelled<br />

moderately and only slightly<br />

emarginated. Cells measure 25-30 x 18-20 M<br />

C. brevis 7.<br />

t^ Ventral edge frequently straight or very<br />

slightly concave. Anterior edge is distinctly<br />

bevelled. Upper front corner protrudes<br />

a little, and is bulky and broadly rounded,<br />

almost semi.circulàr. Emargination is usually<br />

quite shallow. Cells are very slightly<br />

compressed. Gullet appears relatively<br />

.angustate and extends beyond-the middle:<br />

of the cell, lying near the ventral side.<br />

In the anterior part of the ce11 there

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