The Collaborative International Dictionary
Conduplicate
Conduit railway \Conduit railway\ [Webster 1913 Suppl.] Conduplicate \Con*du"pli*cate\, a. [L. conduplicatus, p. p. of conduplicare. See Duplicate.] (Bot.) Folded lengthwise along the midrib, the upper face being within; -- said of leaves or petals in vernation or [ae]stivation.
Wiktionary
conduplicate
a. (context botany English) Describing leaf that are folded (doubled) lengthwise