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.
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
Tannins are also found in certain special structures, such as gland cells, cells of the pulvini, laticiferous tissues, etc.
From The Chemistry of Plant Life by Roscoe Wilfred Thatcher
"However, these trees have conscious control of their pulvini, whereas the Earth's plants don't, and so they can do a lot of things that Earth plants can't."
From The Venus Trap by Evelyn E. Smith
Other facts lead to the same conclusion, such as the presence of pulvini, by the aid of which the nocturnal movement is continued during some weeks.
From The Power of Movement in Plants by Charles Darwin
All the leaflets of L. Gebelii, and probably of the other species, are provided at their bases with distinct pulvini, of a yellowish colour, and formed of very small cells.
From The Power of Movement in Plants by Charles Darwin
