megaphyllyn.
/ˈmɛɡəfɪli/, U.S. /ˈmɛɡəˌfɪli/ Botany.
The state or condition of being megaphyllous.
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the world > plants > part of plant > leaf > plant defined by leaves > [noun] > state of having particular type of leaves
pluminess1802
heterophylly1874
megaphylly1904
stenophyllism1904
1904 Philos. Trans. (Royal Soc.) B. 196 254 The characters of the sporophyte, which show clearly Lycopodinous qualities, with a leaning towards megaphylly.
1931 Science 28 Aug. 221/1 In looking over present-day plants, and back through time, nothing is so deceptive as megaphylly and giantism.
1954 Phytomorphology 11 273/2 The characteristic of the pachycaul is a large apical meristem.., scattered vascular bundles associated with megaphylly, sparse branching, [etc.].
1973 Brittonia 25 371 Corner..argues for the primitive association of megaspermy and megaphylly in tropical trees.
This is a new entry (OED Third Edition, June 2001; most recently modified version published online March 2022).
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n.1904