- monophyllous
[monophyllous 词源字典]
- "Of a plant: having a single leaf or leaflet. Also (of a tree's canopy): consisting of a single layer of leaves. Now rare", Mid 18th cent.; earliest use found in Philosophical Transactions of the Royal Society of London. From mono- + -phyllous.[monophyllous etymology, monophyllous origin, 英语词源]