biology
Showing 589–600 of 764 results
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prothallus with sporophyte (young fern)
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prothallus, antheridia and archeology visible
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protococcus (unicellular aerial algae)
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Pseudoscorpionida
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PUCCINIA
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puccinia graminis, CT leaf of barberry thorn with ecidiospores
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puccinia graminis, teliospores on wheat
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puccinia graminis, uredospores on wheat
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puccinia teliospores (wheat or mauve), dispersed
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pumpkin pollen ( (large crushed grains)
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pumpkin root
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purple digitalis leaf CT