microphyll

noun

mi·​cro·​phyll ˈmī-krə-ˌfil 

1

: a leaf (as of a club moss) with single unbranched veins and no demonstrable gap around the leaf trace

2

: a small leaf

microphyllous

ˌmī-krə-ˈfi-ləs 

adjective

Word History

Etymology

micro- + -phyll

First Known Use

1908, in the meaning defined at sense 1