. Botany of the living plant. Botany; Plants. THALLOPHYTA 357 (Fig. 266). When starved for a lengthened period an encysted form is assumed. The chromatophores diminish in size and colour,. Fig. 265. Euglena gracilis. A. Form with green chromatophores {ch) ; n = nucleus; v== vacuole and red eye-spot; g = flagellum. £ = hemi-saprophytic form with small green chromatophores. C = colourless saprophytic form occurring in nutrient solutions, in absence of light. D = resting cyst of the form C : r=red eye-spot. E=germination of the resting cvst of the form A. by division into four daughter cells, wh
. Botany of the living plant. Botany; Plants. THALLOPHYTA 357 (Fig. 266). When starved for a lengthened period an encysted form is assumed. The chromatophores diminish in size and colour,. Fig. 265. Euglena gracilis. A. Form with green chromatophores {ch) ; n = nucleus; v== vacuole and red eye-spot; g = flagellum. £ = hemi-saprophytic form with small green chromatophores. C = colourless saprophytic form occurring in nutrient solutions, in absence of light. D = resting cyst of the form C : r=red eye-spot. E=germination of the resting cvst of the form A. by division into four daughter cells, which later escape. (After Zumstein.) (A, C x 630 ; 5x650; D, E â < 1000.) (From Strasburger.) and storage materials appear in the contracted protoplasm, which is then surrounded by a thick wall (Fig. 265, D). In this state it can IS. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bower, F. O. (Frederick Orpen), 1855-1948; Wardlaw, C. W. (Claude Wilson), 1901-. London, Macmillan and Co. , ltd.
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