| abdomen |
The third section of the body of an insect, located behind the thorax, containing the digestive and reproductive systems.
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| achene |
A hard, one-seeded fruit that does not split open.
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| alternate |
When pertaining to leaves - placed singly, not in pairs or whorls, on stems.
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| annual |
When relating to plants - completing its life cycle in one year.
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| annulus |
A ring of tissue around the upper portion of the stalk, formed when the partial veil breaks away from the cap margin.
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| antenna |
feelerlike appendages located on the head of an insect.
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| anterior |
Referring to the front of an insect or the forward section of parts of the insect anatomy.
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| anther |
The pollen-bearing, enlarged end of the stamen.
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| antheridium |
In liverworts, the male structure.
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| anthers |
Plural of anther - the enlarged end of the stamen.
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| apothecia |
In lichens, the disc-shaped or cup-like structures which produce spores.
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| appressed |
Closely pressed against.
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| arboreal |
adapted for living and moving about in trees, as the limbs and skeleton of opossums, squirrels, monkeys, and apes.
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| archegonium |
In liverworts, the female structure.
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| auricle |
When pertaining to grasses - an ear-shaped appendage at the base of a leaf blade.
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