The role of 2-needle fascicles in the adaptation and evolution of ponderosa pine

@article{Haller2008TheRO,
  title={The role of 2-needle fascicles in the adaptation and evolution of ponderosa pine},
  author={J. Haller},
  journal={Brittonia},
  year={2008},
  volume={17},
  pages={354-382}
}
Pinus ponderosa Dougl. ex P. & C. Lawson is an important forest tree in many areas of western North America. It ranges from the Pacific Coast to Nebraska, and fl'om British Columbia to northern Mexico. Not unexpectedly, geographic variants appear h'om one region to another within this vast range. Some of these variants are sufficiently well marked to be recognized formally as varieties or occasionally even as species by taxonomists. The race occurring in the central Rocky Mountains and in the… Expand
11 Citations

Figures and Tables from this paper

Geographical and climatic limits of needle types of one- and two-needled pinyon pines
...
1
2
...

References

SHOWING 1-10 OF 15 REFERENCES
Glacial and Pleistocene geology
Nonparametric Statistics for the Behavioral Sciences.
Physiology of Plants Under Drought
Altitudinal races of Pin ~ s ponderosa confirmed
  • Jour . Forest .
  • 1959
The Pliocene Verdi floras of western Nevada
  • Univ . Calif . Publ . Geol .
  • 1958
...
1
2
...