Title
Physiology-Soils PM Negatives 072-074
Creator
Date
1941
Format
Description
Transverse of vertical section of stoma in basal portion of active fully developed leaf (low power in #72 and higher power in #73).
Longitudinal section of stoma in basal portion of active fully developed leaf (#74).
Photographed by B. Krauss, June 23, 1941.
Longitudinal section of stoma in basal portion of active fully developed leaf (#74).
Photographed by B. Krauss, June 23, 1941.