Category: P
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Personate
With the throat of a bilabiate corolla nearly closed by a projection from the lower lip. The throat of a bilabiate corolla when masked by some projection.
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Persistent
Remaining in place, not falling off. Opposites: caducous (falling early) and deciduous (falling seasonally). Remaining attached longer than might be expected. Remaining beyond the usual time. A structure that stays on the plant after it serves its purpose, instead of falling off. The sepals of the rose which stay on the ripening rose hip are…
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Perpendicular
At right angles to the axis of its attachment. At right angles to the plane of the ground.
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Perispore
Membrane surrounding the spore.
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Perisperm
Food storage tissue of some seeds formed from the nucellus, i.e. the layer outside the endosperm.
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Periphery
Outside edge. The outside of an organ. The regions of the body where the nerves end, such as the sense organs or the muscles. The surface of something. The outer part or surface of a body; the part away from the center.
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Peripheral
On the edge. Near the surface or outside, as in peripheral circulation. Pertaining to an outside surface. To the outside, surface, or area away from the center of an organ or of the body.
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Perigynous
When the sepals, petals and stamens are carried up around the ovary on a hypanthium. When the petals and stamens are borne on the calyx.
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Perigynium
(In Cyperaceae) a membrane or sac enclosing the female flower and later the fruit. Arranged around the pistil.
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Perigoniate
Adjective of perigon.