Skip to Main Content
Hybridization of foxtail and bristlecone pinesAuthor(s): William B. </p> Critchfield
Source: Madroño, Volume 24(4): p. 193-212
Publication Series: Miscellaneous Publication
PDF: View PDF (2.0 MB)
DescriptionThe pines have been more successful than most of their coniferous relatives in occupying marginal habitats at the upper and lower edges of the forest zone in western North America. Among the groups restricted to such habitats is subsection Baljourianae of Pinus, comprising the fox tail and bristlecone pines. These pines characteristically grow on cold dry sites at high elevations, and in most places have few tree associates. Perhaps because of their inaccessibility and limited economic importance, not much was known about them until E. Schulman's discovery in the mid-1950's that some bristlecone pines reach greater ages than other higher organisms (Ferguson, 1968). Since then, much has been learned about the Baljourianae, and investigations of natural variation have generated two taxonomic proposals in the group. Bailey (1970) named the western populations of bristlecone pine P. longaeva, restricting the older name, P. aristata Engelm., to the eastern populations. Mastrogiuseppe (1972) proposed the subdivision of foxtail pine (P. balfouriana Grev. & Balf.) into two subspecies.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationCritchfield, William B. 1977. Hybridization of foxtail and bristlecone pines. Madroño, Volume 24(4): p. 193-212
- The magnificent high-elevation five-needle white pines: Ecological roles and future outlook
- Patterns of resistance to Cronartium ribicola in Rocky Mountain bristlecone pine (Pinus aristata)
- Ecological roles of five-needle pine in Colorado: Potential consequences of their loss
XML: View XML