Production of specialized reproductive structures : A few plants produce adventitious plantlets on their leaves e.g. Tolmiea menziesii and Kalanchoe daigremontiana .
Their leaves drop off and form independent plants .
Production of specialized reproductive structures : A few plants produce adventitious plantlets on their leaves , which drop off and form independent plants , e.g. Tolmiea menziesii and Kalanchoe daigremontiana .