Mindblown: a blog about philosophy.
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Pit
A small hollow or depression. Hardened covering enclosing seed or seeds in a fruit, as in a peach. A hollow or depression, such as any of the depressions on the surface of an embryo marking the site of future organs. The pit, or hard seed, of a fruit such as a peach or cherry is…
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Pistillode, pistillodium
A rudimentary sterile pistil.
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Pistillate
Female; Flower with only female organs. A female flower that has pistils but no stamens. A unisexual (female) flower in which only carpels are present, the stamens being rudimentary or suppressed. Said of a flower having pistils and no stamens. Female flower that lacks functional stamens. Describes a female flower bearing one or more pistils…
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Pisiform
Shaped like a pea; better to say ‘shaped like a small globe’. One of the eight small carpal bones in the wrist. A small, pea-sized bone located in the wrist.
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Pioneer
Species colonising new environments (e.g. after clear-cutting, volcanic eruptions or fire) and starting a plant succession. Usually referring to fast growing, soft-wooded trees that are very intolerant of shade, such as Cecropia, Ochroma, and Heliocarpus species. These are early colonizers of open areas such as landslides, forest gaps, or abandoned pastures. Also used for herbs…
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Pinnule
In a bipinnate leaf, a second-order pinna, the first-order segment of a pinna. A division of a pinna. The ultimate division of a twice-pinnate leaf. A secondary pinna of a bipinnate leaf. A subleaflet of a fern frond or other twice-compound leaf. Botanist’s terms for the leaflet of a pinnate and bipinnate leaf respectively.
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Pinnipalmate
Mostly with pinnate venation, but with the first pair(s) of veins much more distinctive than the others [uncommon term].
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Pinninerved
Pinnately veined [obscure term].
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Pinnatisect
Pinnately divided almost to the midrib.
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Pinnatipartite
Pinnately divided to about halfway.
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