Fossil ectomycorrhizae from the Middle Eocene.

@article{LePage1997FossilEF,
  title={Fossil ectomycorrhizae from the Middle Eocene.},
  author={Ben LePage and R. S. CurrahR. Currah and Ruth A. Stockey and Gar W Rothwell},
  journal={American journal of botany},
  year={1997},
  volume={84 3},
  pages={
          410
        }
}
Fossil ectomycorrhizae were found recently among permineralized plant remains in the middle Eocene Princeton chert of British Columbia. The ectomycorrhizae are associated with roots of Pinus and have a Hartig net that extends to the endodermis, a pseudoparenchymatous mantle, and contiguous extramatrical hyphae that are simple-septate. The mycorrhizal rootlets lack root hairs and dichotomize repeatedly to form large, coralloid clusters. Reproductive structures are absent. Based on the… 
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