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from article Plum
Plums (Prunus domestica, cultivar Bluebyrd). (Photo by Scott Bauer, Agricultural Research Service, U.S. Department of Agriculture)
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from article Plum
Plum fruits infected with the fungal disease known as plum pockets (caused by Taphrina communis). (Photo by Mike Schomaker, Colorado State Forest Service)
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from article Mushroom
(a) Chlorine Amanita (Amanita chlorinosma) [photo courtesy of Don Pfitzer, U.S. Fish and Wildlife Service]. (b) Shaggy mane mushroom (Coprinus comatus) [photo courtesy of Jim Peaco, Yellowstone National Park]. (c) Ornate-stalked bolete (Boletus…
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from article Mushroom
Common cultivated mushroom (Agaricus). (Courtesy of D. Martínez-Carrera)
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from article Mushroom
Oyster mushroom (Pleurotus). (Courtesy of D. Martínez-Carrera)
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from article Mushroom
Shiitake mushroom (Lentinula). (Courtesy of D. Martínez-Carrera)
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from article Digitalis
Close-up view of common purple foxglove (Digitalis purpurea). (Photo by Vera Kratochvil)
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from article Archeology
Exterior view of the entrances to two small Neolithic passage graves at Knowth, County Meath, Ireland, which date to approximately 3200 BCE. Graves of this type help archeologists to reconstruct past lifeways of the humans that created them.…
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from article Archeology
Stone tools from one of the oldest archeological sites in the world, OGS7 at Gona in Ethiopia, dating to 2.6 million years ago. (Top left) Refitting of flakes to a core (modified cobblestones that have been flaked). There are a variety of artifacts,…
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from article Archeology
Stonehenge monument in Wiltshire, England. The first stones to be raised at this site have been dated to about 2500 BCE. The archeological evidence supports the theory that this sophisticated prehistoric stone circle was used as a ceremonial burial…
