PLATE CCCCX.
CYNANCHUM UNDATUM.
Waved Cynanchum.
CLASS V. ORDER I.
PENTANDRIA DIGYNIA. Five Chives. Two Pointals.
ESSENTIAL GENERIC CHARACTER.
Contorta. Nectarium cylindricum, quinquedentatum.
Contorted. Honey-cup cylindrical, five-toothed.
SPECIFIC CHARACTER.