Claim · model-written summary
The medullary rays of Cedrus have a margin whose composition varies greatly.
CedrusNot reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The medullary rays of Cedrus are provided with a margin which varies greatly in composition”
Title
M. A. Chrysler Botanical Gazette 1915. doi:10.1086/331569
Other claims from this paper (4)
- Observation Marginal parenchyma at the limit of annual rings may extend beyond it and be more plentiful than ray tracheids in Cedrus.
- Mechanism The constant occurrence of marginal parenchyma at annual ring limits, with its connection to resin cells, indicates that parenchyma has replaced tracheids in resin secretion in Cedrus.
- Observation The marginal cells in Cedrus show distinct evidence of a degenerating condition.
- Observation The medullary ray structure places Cedrus as intermediate between Pinus and Abies.