#windowleave

[phytophiliac]

Peperomia maijeri belongs to a class of "window leaved" Peperomias that have epidermal windows which appear here as the dark green partion along the midline of the leaf. In cross section, the surface is actually a clear window that increases the plant's absorption of radiant energy. This adaptaion is also found in a number of plants including Lithops, Haworthia and Haworthiopsis.