Definition of Pulvinus

1. Noun. (botany) A joint on a plant leaf or petiole that may swell and cause movement of the leaf or leaflet. ¹



¹ Source: wiktionary.com

Definition of Pulvinus

1. a swelling at the base of a leaf [n -NI] : PULVINAR [adj]

Pulvinus Pictures

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Lexicographical Neighbors of Pulvinus

pulvilios
pulvillar
pulville
pulvilled
pulvilles
pulvilli
pulvillus
pulvils
pulvinae
pulvinar
pulvinars
pulvinate
pulvini
pulvinic acid
pulvinoid
pulvinus (current term)
pulwar
pulwars
puly
puma
pumalike
pumas
pumelo
pumelos
pumicate
pumicated
pumicates
pumicating
pumice
pumice stone

Literary usage of Pulvinus

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Power of Movement in Plants by Charles Darwin, Francis Darwin (1900)
"hardly be a doubt that the pulvinus was becoming rudimentary and tending to disappear; and this accounts for its great variability in structure and function ..."

2. Comparative Electro-physiology: A Physico-physiological Study by Jagadis Chandra Bose (1907)
"... effect and negative to transmission of true excitation—Mechanical response of leaf of Mimosa to light applied on upper half of pulvinus—Mechanical ..."

3. Lectures on the Physiology of Plants by Sydney Howard Vines (1886)
"Briicke ascertained that the rigidity of the pulvinus is less during the day than during the night, and it might be concluded from this that the gradual ..."

4. An Introduction to Vegetable Physiology by Joseph Reynolds Green (1900)
"pulvinus OF Mimosa. a, b, the succulent parenchyma of its upper and lower sides ; c, bud; ,1, parenchyma of rachis; e, pith. relatively considerable ..."

5. An Introduction to Vegetable Physiology by Joseph Reynolds Green (1907)
"pulvinus or Mimosa. a, b, the succulent parenchyma of its upper and lower side« ; c, bud ; '', parenchyma of Rachis ; e, pith. with water in sufficient ..."

6. Lectures on Plant Physiology by Ludwig Jost (1907)
"In order to study the changes which precede these movements we will naturally confine ourselves to the largest pulvinus at the base of the primary petiole. ..."

7. Charles Darwin's Works by Charles Darwin (1896)
"same pulvinus and in different individuals. In the accompanying figures, ... They offer a striking contrast with the pulvinus of 0. rosea (see former Fig. ..."

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