pictures: Marian Ørgaard and Niels Jacobsen
drawings: Line Jacobsen
Three main points in the article:
- The lower part of the kettle has a mucilage covering, interpreted as a hitherto
unnoticed food source for visiting insects.
- The cells of the inner surface of the tube and the kettle have downward pointing
trichomes, which collapse after two days and sink into the cell lumen. A lattice like
structure remains enabling insects to climb out of the kettle and tube.
- The flap covering the male flowers is interpreted as a prolongation and continuation of
the spathe tube margin.
See also the page Spathe, Inside the kettle, and Foliage, rhizome and roots
The article with much more detail and discussion and 73 pictures:
Ørgaard, M. & Jacobsen, N., 1998. SEM study of surfaces of the
spathe in Cryptocoryne and Lagenandra (Araceae: Aroideae:
Cryptocoryneae). Botanical Journal of the Linnean Society 126: 261-289.