. Botany for agricultural students . Botany. Fig. 168. — Lengthwise section through a vascular bundle of Corn, the knife splitting the bundle as shown by the line (o) in Figure 167, thus missing the pitted vessels, x, xylem showing spiral vessel {h) and annular vessels (a) which have been so torn by the growth of the stem that only the rings are left; p, phloem consisting of sieve vessels (e) and companion cells (c); s, strengthening tissue. Highly FiQ. 169. — Vascular elements common among Ferns and Seed Plants, a, spiral vessel; 6, annular vessel; c, pitted vessel; d, reticulated
. Botany for agricultural students . Botany. Fig. 168. — Lengthwise section through a vascular bundle of Corn, the knife splitting the bundle as shown by the line (o) in Figure 167, thus missing the pitted vessels, x, xylem showing spiral vessel {h) and annular vessels (a) which have been so torn by the growth of the stem that only the rings are left; p, phloem consisting of sieve vessels (e) and companion cells (c); s, strengthening tissue. Highly FiQ. 169. — Vascular elements common among Ferns and Seed Plants, a, spiral vessel; 6, annular vessel; c, pitted vessel; d, reticulated vessel; e, sca- lariform vessel; /, elements of the phloem showing sieve vessel with sieve plate (h), and companion cell (c). Highly magnified, a and b, after Bonnier and Leclerc Du Sablon; c, after DeBary; d. modified from Barnes; e, modi- fied from Cowles; and/, from 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 Martin, John N. (John Nathan), b. 1875. New York : John Wiley & Sons, Inc.
Size: 1685px × 1483px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
