desmid

1 Some green algae may already be familiar, in particular Spirogyra and desmids.

2 C. nivalis is a green alga — the group that gave rise to land plants, and includes the desmids I discussed here last month.

3 With tiny, sculpted bodies and some distinctly unplantlike behavior, desmids are gorgeous botanical oddballs.

4 Both diatoms and desmids may cohere together, forming more complex masses; but another creature allied to Protococcus is noted for its mode of cohesion.

5 Algal spores took hold, desmids and diatoms swam in and settled down, little fish wandered in and out of the crevices, while large ones nosed at the entrances.

6 Most of the diatoms show movements, swimming slowly or gliding over solid substances; but like the movements of Oscillaria and the desmids, the movements are not satisfactorily understood, although several explanations have been offered.

7 In some respects they approach quite closely the desmids, and are not infrequently regarded as related to them.

8 They resemble somewhat the desmids in their reproduction.

9 The desmids include the most beautiful examples of unicellular plants to be met with, the cells having extremely elegant outlines.

10 The desmids often have the power of movement, swimming or creeping slowly over the slide as we examine them, but the mechanism of these movements is still doubtful.

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chlorella alga chlamydomonas volvox spirogyra stonewort Chlorophyta sea lettuce blanket weed