Text-book of structural and physiological botany . Fig. 49.—Groups of crystals; « from theleaf of Begonia heracleifolia (quad-rate octohedra) ; b from the stem ofUrostigma elasticti7n. (x 660.) Fig. 50.—Cell from the stem of Aloeretusa, with raphides. (x 320.) called pseudo-compound where several are enclosed together in onevesicle, as in a grain of chlorophyll (Fig. 47). Only in a comparatively The Cell as an Individual. 29 small number of groups of plants has no starch been fcund up to thepresent time, as in many Algae and Fungi. The purpose of the forma-tion of starch is that it may be stor
Text-book of structural and physiological botany . Fig. 49.—Groups of crystals; « from theleaf of Begonia heracleifolia (quad-rate octohedra) ; b from the stem ofUrostigma elasticti7n. (x 660.) Fig. 50.—Cell from the stem of Aloeretusa, with raphides. (x 320.) called pseudo-compound where several are enclosed together in onevesicle, as in a grain of chlorophyll (Fig. 47). Only in a comparatively The Cell as an Individual. 29 small number of groups of plants has no starch been fcund up to thepresent time, as in many Algae and Fungi. The purpose of the forma-tion of starch is that it may be stored up in the cells as a reserve food-material, which becomes dissolved in the subsequent formation of new
Size: 945px × 2645px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookpublishernewyorkjwileysons
