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Pulvinulus (pl. = pulvinulus, adj. = pulvinate or pulvinulate)
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An enlargement at the base of the petiole or petiolule of leaves. |
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Pulvinus (plural = pulvini)
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An enlargement of a portion of the petiole, without an apparent function (e.g., Protium, Burseraceae) or sometimes controlling the orientation of the leaf or leaflet (e.g., Mimosa polydactyla and M. pudica, Fabaceae). |
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Puna
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A Spanish term referring to a high altitude, rather dry, Andean vegetation dominated by grasses and ranging from Peru southward. |
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Punctate
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With small dots or streaks that transmit light when held against a light source, with sunken glands, or colored dots; especially easy to see in species of Myrtaceae and Rutaceae. |
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Punctation (adj. = punctate)
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A translucent glandular dot or streak such as found on the leaves of Myrtaceae or Rutaceae or an opaque dot found in other families, such as the Lecythidaceae. |
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Punctiform
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Dotlike, reduced to a mere point, e.g., the apex of some styles. |
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Punteado
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Se refiere a una superficie vegetal que presenta pequeños puntos que permiten el paso de la luz al observarse una hoja a contraluz, glándulas hundidas o puntos coloreados, especialmente vistos en las especies de Myrtaceae y Rutaceae |
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Purpureus
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Red-violet but closer to red than blue. |
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Pustule (adj. pustulate)
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A small pimple-like eruption from the surface of part of a plant; e.g., from the hypanthium. |
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Pustule (adj. pustulate)
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A small pimple-like eruption from the surface of part of a plant; e.g., from the hypanthium. |
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Pyramidate
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Pyramid-shaped. |
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Pyrene
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In the Burseraceae, the part of the fruit surrounding a seed or seeds that is derived from the endocarp and is sometimes surrounded by a pseudaril. Similar to a stone but we restrict stones to only drupes or drupelets with a single seed. |
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Pyriform
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Pear-shaped. |
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Pyxidium, pyxidiate
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A capsular fruit with circumscissile dehiscence. |
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Quadrate
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Square. |
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Quadrilateral
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Referring to a plane shape with four sides. |
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Quaternary vein
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Referring to fourth order leaf veins which are intermediate in diameter between tertiary and quinary veins. |
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Quaternate
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Referring to a type of leaf arrangement in which four leaves are found at each node. |
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Quillada, quillado
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Que posee una quilla. Lo mismo que carinada. |
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Quincuncial
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Referring to a type of imbricate aestivation of five sepals or petals, two with both margins inside, two with both margins outside, and one with one margin inside and the other margin outside. |
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Raceme
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An indeterminate inflorescence with a single axis, the flowers borne on pedicels of more or less equal length, and the uppermost flower the youngest. Compare with spike. |
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Racemose
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Racemelike. |
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Rachilla
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The axis of a spikelet of a Cyperaceae or a Poaceae along which are placed the florets. |
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Rachis (alt. spelling = rhachis)
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The axis of a compound leaf (excluding the petiole) or of an inflorescence (excluding the peduncle); in legumes, that part of the leaf axis bearing leaflets of any order. |
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Rachlla
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A secondary axis of an inflorescence; e.g., the axis of the spikelet in Poaceae or the axis that bears the flowers in Arecaceae. |
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