Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

USFS Logo Research Data Archive
You are here: Home > Search Results


*To download images in addition to list, filter to 100 images or fewer.
Displaying items 1 - 20 of 90
10 | 20 | 50 per page
Cytospora chrysosperma on Populus alba; spore horns after partial deliquescence.
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Location: Albuquerque; NM; United States
Description: Cytospora chrysosperma on Populus alba; spore horns after partial deliquescence.
Date: 10/31/1915

Cytospora chrysosperma (culture) on Populus.
more info/bigger image
Collection: RMRS Archive Images
Keywords: culture (fungal, etc.)
forest pathology
Location:
Description: Cytospora chrysosperma (culture) on Populus.
Date: 10/20/1915

Cytospora chrysosperma (culture) on Populus.
more info/bigger image
Collection: RMRS Archive Images
Keywords: culture (fungal, etc.)
forest pathology
Location:
Description: Cytospora chrysosperma (culture) on Populus.
Date: 10/20/1915

Spruce burns - 30-40 years old
more info/bigger image
Collection: RMRS Archive Images
Keywords: fire
San Francisco Peaks
forest pathology
Organisms: spruce
Location: San Francisco Peaks, Coconino N.F.; AZ; United States
Description: Spruce burns - 30-40 years old
Date: 10/18/1915

Spruce burns - 30-40 years old
more info/bigger image
Collection: RMRS Archive Images
Keywords: San Francisco Peaks
fire-effects
spruce burn, Inner Basin circa 1880
forest pathology
Organisms: spruce
Location: San Francisco Peaks, Coconino N.F.; AZ; United States
Description: Spruce burns - 30-40 years old
Date: 10/18/1915

Spruce burn 30-40 years old on slope of interior of San Francisco Peaks
more info/bigger image
Collection: RMRS Archive Images
Keywords: San Francisco Peaks
spruce burn, Inner Basin circa 1880
forest pathology
Organisms: fir
Location: San Francisco Peaks, Coconino N.F.; AZ; United States
Description: Spruce burn 30-40 years old on slope of interior of San Francisco Peaks
Date: 10/18/1915

Pulled top
more info/bigger image
Collection: RMRS Archive Images
Keywords: forest pathology
Organisms: ponderosa pine
Location: Tusayan forest along road to Kendrick; AZ
Description: Pulled top
Date: 10/16/1915

Black jack ponderosa pine (#77) with resin below dead limb previously infected by southwestern dwarf mistletoe
more info/bigger image
Collection: RMRS Archive Images
Keywords: forest pathology
Organisms: mistletoe
Location: Fort Valley Experimental Forest; AZ; United States
Description: Black jack ponderosa pine (#77) with resin below dead limb previously infected by southwestern dwarf mistletoe
Date: 10/15/1915

Cytospora chrysosperma on Populus alba. Black canker or lesion resulting from artifical inoculation; canker girdles 3/4 of stem.
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Location:
Description: Cytospora chrysosperma on Populus alba. Black canker or lesion resulting from artifical inoculation; canker girdles 3/4 of stem.
Date: 10/03/1915

Cytospora chrysosperma (canker) on Populus alba.
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Location: Albuquerque; NM; United States
Description: Cytospora chrysosperma (canker) on Populus alba.
Date: 10/03/1915

Lesion caused by Cytospora chrysosperma at base of Salix babylonica, insects feeding on wound exudate
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Location:
Description: Lesion caused by Cytospora chrysosperma at base of Salix babylonica, insects feeding on wound exudate
Date: 10/01/1915

Cytospora chrysosperma (galls) on Populus eugenei.
more info/bigger image
Collection: RMRS Archive Images
Keywords: gall
forest pathology
Location: Albuquerque; NM; United States
Description: Cytospora chrysosperma (galls) on Populus eugenei.
Date: 10/01/1915

Wooly aphids associated with Cytospora chrysosperma induce galls on Carolina poplar
more info/bigger image
Collection: RMRS Archive Images
Keywords: gall
forest pathology
Location: Albuquerque; NM; United States
Description: Wooly aphids associated with Cytospora chrysosperma induce galls on Carolina poplar
Date: 10/01/1915

Watershed Project
more info/bigger image
Collection: Sierra Ancha Historical Images
Keywords: erosion
watershed
Location: Coronado NF; AZ; USA
Description: Watershed Project
Date: 09/1915

Watershed Project
more info/bigger image
Collection: Sierra Ancha Historical Images
Keywords: soil
erosion
watershed
Location: Coronado NF; AZ; USA
Description: Watershed Project
Date: 09/1915

Watershed Project
more info/bigger image
Collection: Sierra Ancha Historical Images
Keywords: stream flow
erosion
drainage
watershed
Location: Coronado NF; AZ; USA
Description: Watershed Project
Date: 09/1915

Watershed Project
more info/bigger image
Collection: Sierra Ancha Historical Images
Keywords: erosion
grasses
wind
Location: Coronado NF; AZ; USA
Description: Watershed Project
Date: 09/1915

Watershed Project
more info/bigger image
Collection: Sierra Ancha Historical Images
Keywords: cutting
drainage
watershed
Organisms: cattle
Location: Coronado NF; AZ; USA
Description: Watershed Project
Date: 09/1915

Watershed Project
more info/bigger image
Collection: Sierra Ancha Historical Images
Keywords: erosion
flooding
drainage
watershed
Location: Coronado NF; AZ; USA
Description: Watershed Project
Date: 09/1915

Watershed Project
more info/bigger image
Collection: Sierra Ancha Historical Images
Keywords: erosion
rock formation
Location: Coronado NF; AZ; USA
Description: Watershed Project
Date: 09/1915