Images

Digital still photograph from Massachusetts Bay near Cohasset, MA, showing seastars (Asterias sp.), blood stars (Henricia sanguinolenta), blood drop tunicates (Dendrodoa carnea), mussels, and barnacles on cobbles and boulders covered with bubblegum algae and red filamentous algae.  Water depth at this location is approximately 19.6 meters.

This photo shows foxtail pine cones in different stages of development. The small, tightly closed purplish cones are the most recently formed, the ones on the right older but not yet opened, and the one in the center of the image has already opened and dropped its seeds, which are tucked at the base of the scales.

Cliff dwelling known as Square Tower House in Mesa Verde National Park. (Scanned From Negative)

USGS employee showing the rhizosphere (root zone) of a wetland plant, which is a critical zone for microbiological and biogeochemical processes.

USGS researcher, Dr. Windham-Myers, collecting a white rice sample after 2 months of growth.

A diversity of birds forage for small fish and invertebrates on fallow fields throughout the year.

Cliff dwelling known as Square Tower House in Mesa Verde National Park. (Scanned From Negative)

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

Snake cactus that has wrapped itself about the trunk of a Sabal palm on the Gulf coast of Florida. (Scanned From Negative)

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

Leaves and purple flowers of a railroad vine (beach morning-glory) as it colonizes the sands of a coastal dune on a Gulf coast barrier island.

Leaves and purple flowers of a Morning-glory as it colonizes the sands of a coastal dune on a Gulf coast barrier island. (Scanned From Negative)

Leaves and purple flowers of a railroad vine (beach morning-glory) as it colonizes the sands of a coastal dune on a Gulf coast barrier island.

Leaves and purple flowers of a railroad vine (beach morning-glory) as it colonizes the sands of a coastal dune on a Gulf coast barrier island. (Scanned From Negative)

Leaves and purple flowers of a railroad vine (beach morning-glory) as it colonizes the sands of a coastal dune on a Gulf coast barrier island. (Scanned From Negative)

The leaves and flowers of the popular tropical tree, Plumeria. This specimen in Florida has been employed as a landscape ornamental. (Scanned From Negative)

Decorative stand of the Pampas grass Cortaderia. (Scanned From Negative)