Title: Biology of rust resistance in forest trees : proceedings of a NATO-IUFRO advanced study institute, August 17-24, 1969
Identifier: biologyofrustres1221nort (find matches)
Year: 1972 (1970s)
Authors: North Atlantic Treaty Organization; International Union of Forestry Research Organizations; United States. Forest Service; University of Idaho
Subjects: Trees; Pine; Trees; Rust diseases
Publisher: Washington, D. C. : Forest Service
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
WHITE PTVFS r WESTERN NORTH AMERICA 219
Text Appearing After Image:
Figure 4. Better formed Pinus albicaulis trees in Yellowstone National Park, Wyoming (U.S. Forest Service photo). part of the state and in several mountain ranges in the southwestern part There are a few scattered trees in northeastern Oregon and west-central Idaho. It is also found in isolated spots in western North and South Dakota and southwestern Nebraska (Critcbfield and Little, 1966; Map 8). In areas where the elevational range is sufficient the species often has a split distribution, growing with Jimiperous spp. o~ drougnty sites in the transition zone between grassland and forest as well as with P. albicauliSj Picea engelmannii Parry, and Ab-ies lasiooavpa (Hook.) Nutt. at upper timberline. Limber pine is seldom harvested on a commercial basis but some trees have been used for rough lumber and mine timbers in areas wnere other trees are scarce. The species has esthetic importance in places such as Craters of the Moon National Monument in southern Idaho where it is the only tree occurring over much of the area. Limber pine also provides â valuable watershed protection in many areas. Naturally occurring limber pines usually have widely rounded crowns that often contain several stems or upturned branches (Fig. 5). The mature trees usually range from 30 to 50 feet in height with diameters of 1.5 to 3 feet. Maximum reported height is 85 feet (Harlow and Harrar, 1950) and maximum diameter 7.5 feet (Littlecott, 1969).

Note About Images