Phylloid
![](https://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Rhodobryum_roseum0.jpg/220px-Rhodobryum_roseum0.jpg)
Moss leaves ( rosette rose moss )
![](https://upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Saccharina_latissima_NOAA.jpg/220px-Saccharina_latissima_NOAA.jpg)
meter-long phylloids ( sugar wrack )
Phylloids are flat, leaf-like structures of thallophytes . Like the leaves of vascular plants , they serve as an organ for photosynthesis . However, they differ in their simpler structure and the lack of real vascular bundles .
Phylloids occur in leafy mosses , the mostly delicate structures are also known as “leaflets”.
Phylloids are also found in highly developed algae , such as many brown algae . In these, the phylloids are coarse and can grow to several meters.
swell
- Peter Sitte, Hubert Ziegler, Friedrich Ehrendorfer, Andreas Bresinsky: Strasburger, textbook of botany. Gustav Fischer, Stuttgart, Jena, New York 1991, ISBN 3-437-20447-5 , p. 233-234, p. 600 and p. 647.