The story
From mono- + chlamydeous, from mono- + Ancient Greek χλαμύς (khlamús, “mantle, cloak”) + -ous.
Etymology from Wiktionary, CC BY-SA 4.0.
monochlamydeous
Today it means: Having a single floral envelope, that is, a calyx without a corolla, or, possibly, in rare cases, a corolla without a calyx. Full definition →