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Evaluation of Sphaeropsis Blight Impact on Geograp
http://www.hcs.ohio-state.edu/ODNR/Health/PNIGRAArticle97.html
Article by Daniel B. Houston, Ph.D. and James R. McClenahen, Ph.D. of Ohio State University. [1996]
Pinus nigra
http://www.fs.fed.us/database/feis/plants/tree/pinnig/
Information on distribution and occurrence, value and use, characteristics, and fire ecology.
Pinus nigra
http://www.botanik.uni-bonn.de/conifers/pi/pin/nigra.htm
Detailed taxonomic notes and physical description of European Black Pine. Includes images plus facts on range and ethnobotany.
Pinus nigra (Austrian Pine)
http://www.for.nau.edu/azproject/Species/pin_nig0.html
Brief fact sheet.
Pinus nigra (Austrian Pine)
http://www.hcs.ohio-state.edu/hcs/TMI/Plantlist/pi_nigra.html
Photo, physical traits, and uses of this species.
Pinus nigra (Austrian Pine)
http://www.canr.uconn.edu/plsci/mbrand/p/pinnig/pinnig1.html
Description with images.
Pinus nigra (Austrian Pine)
http://www.cnr.vt.edu/dendro/dendrology/syllabus/pnigra.htm
Description of physical features. Includes images.
Pinus nigra Arnold (European Black Pine)
http://www.na.fs.fed.us/spfo/pubs/silvics_manual/Volume_1/pinus/nigra.htm
Information from the U.S. Forest Service silvics manual.