pulvinus
noun
a cushionlike swelling at the base of a leaf or leaflet, at the point of junction with the axis.
pulvini
-
pluralof pulvinus.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
All the parts or organs in every plant whilst they continue to grow, and some parts which are provided with pulvini after they have ceased to grow, are continually circumnutating.
From The Power of Movement in Plants by Charles Darwin
Oxalis corniculata: A and B the almost rudimentary pulvini of the cotyledons of two rather old seedlings, viewed as transparent objects.
From The Power of Movement in Plants by Charles Darwin
In the Leguminosae all the cotyledons which sleep, as far as we have seen, are provided with pulvini.
From The Power of Movement in Plants by Charles Darwin
In the case of Oxalis sensitiva two-thirds of the petiole, and in that of Mimosa pudica, apparently the whole of the short sub-petioles of the leaflets have been converted into pulvini.
From The Power of Movement in Plants by Charles Darwin
Thus the movements of the cotyledons of Brassica oleracea and of Ipomoea caerulea, which are not provided with pulvini, are as complex as those of Oxalis and Cassia which are thus provided.
From The Power of Movement in Plants by Charles Darwin
