![](https://nthumb.tpgimages.com/mid2_com_img/1339/7978/TOP10173598.jpg)
Scanning electron micrograph of the wood (secondary xylem) of the Scots pine, Pinus sylvestris showing both vertical (bottom) & horizontal (top) cut surfaces. The large-celled wood at right is early (spring) growth; the late wood (left) has small, thick- walled cells and is much denser. The vertical tube- like structures seen in both early and late wood are tracheids. In softwoods like pine, these carry out both sap- conducting and mechanical functions; the large early tracheids are primarily concerned with conduction, whereas the much smaller late ones act primarily as structural elements. Magnification: x60 at 8x10 inch size.
px | px | dpi | = | cm | x | cm | = | MB |
Details
Creative#:
TOP10173598
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
Same folder images: