. Elements of plant anatomy;. Botany -- Anatomy. Fig. 17. A club-shaped hair of an etiolated potato stem with crystalloids, k. B alevirone grains 1-5 from Ilicinus seed; 8-9 from Momordica seed, r v globoids, k k crystalloids. A x 300. B X 4(X». — {Accd. to Vogl.). Fig. 18. Aleurone grains from Ricinus, a in thick glycerine, b in thin, showing the enclosed crystalloids. The roundish bodies are globoids, c grain contain- ing crystal of calcium oxalate. {Th. Hartig.) frequent occurrence than the globoids, and are usually either needle-shaped or prismatic. In some instances the entire proteid mat
. Elements of plant anatomy;. Botany -- Anatomy. Fig. 17. A club-shaped hair of an etiolated potato stem with crystalloids, k. B alevirone grains 1-5 from Ilicinus seed; 8-9 from Momordica seed, r v globoids, k k crystalloids. A x 300. B X 4(X». — {Accd. to Vogl.). Fig. 18. Aleurone grains from Ricinus, a in thick glycerine, b in thin, showing the enclosed crystalloids. The roundish bodies are globoids, c grain contain- ing crystal of calcium oxalate. {Th. Hartig.) frequent occurrence than the globoids, and are usually either needle-shaped or prismatic. In some instances the entire proteid matter of the aleurone grain takes the form of a crystal and is then known as a protein cr3^stal instead of a protein grain. Between these protein crys- tals and the grains with several enclosed structures, various intermediate or transition forms occur. Reserve material is also stored in various places in the plant in a different form from the two organized structures, starch and aleurone grains. For example, the carbohydrates are sometimes stored as cellulose, the nitrogenous substances, as amorphous proteids. All of these substances are non-diffusible and must undergo some change when it becomes necessary to convey them from one cell to another. The non-nitrogenous substances are changed to sugars, the nitrogenous to amides. This brings us to the consideration of the remaining sub- stances found in plant cells, many of which are organic but not. 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 Gregory, Emily L. Boston, London, Ginn & Co.
Size: 2405px × 1039px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotanya, bookyear1895
