Ptyxis - definition of ptyxis by The Free Dictionary
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(Botany) botany the folding of each individual leaf in a bud
References in periodicals archive
Observations on ptyxis
, phenology, and trichomes in the Cycadales and their systematic implications.
John O'Reilly from Ptyxis
Ecology said: "This is a very exciting find for botanists and conservationists in the region.