. Algæ. Vol. I. Myxophyceæ, Peridinieæ, Bacillarieæ, Chlorophyceæ, together with a brief summary of the occurrence and distribution of freshwat4er Algæ . Fig. 8. Synechocystis aquatilis Sauvageau, showing various stages of highly magnified (after Gardner). chlorophyll. One form of carotin has been named polycystin by Zopf;and another form, which is identical with Sorbys pink phycocyanin, has beennamed myxophycin by Chodat. All these pigments can be extracted byappropriate methods (consult Lemmermann, 07, p. 9). The phycocyaninis soluble in water, and after rapidly killing th
. Algæ. Vol. I. Myxophyceæ, Peridinieæ, Bacillarieæ, Chlorophyceæ, together with a brief summary of the occurrence and distribution of freshwat4er Algæ . Fig. 8. Synechocystis aquatilis Sauvageau, showing various stages of highly magnified (after Gardner). chlorophyll. One form of carotin has been named polycystin by Zopf;and another form, which is identical with Sorbys pink phycocyanin, has beennamed myxophycin by Chodat. All these pigments can be extracted byappropriate methods (consult Lemmermann, 07, p. 9). The phycocyaninis soluble in water, and after rapidly killing the cells, may be easily obtainedas a brilliant blue solution from which it can be crystallized. It has long been known that the Myxophyceae occurring in deep waterare for the most part tinted red, and Gaidukov (04—06) has suggestedthat this is a complementary chromatic adaptation due to the fact thatthe quality of the light is affected by the depth of the water through whichthe suns rays have to pass. He found that a species of Oscillatoria changedits colour when grown behind coloured glass or coloured solutions, and thatthe change was always in
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