Floating ferns
| Floating ferns | ||||||||||||
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Common swimming fern ( Salvinia natans ), illustration |
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| Scientific name | ||||||||||||
| Salviniales | ||||||||||||
| Bartl. |
The order swimming ferns (Salviniales) belongs to the ferns .
features
The leaf blade is divided into fertile and sterile sections. The veins anastomose . Air tissue is often present in the roots, stem and petioles. One annulus is missing.
The plants are heterosporous . The spores germinate endospore. The gametophytes are reduced.
Systematics
The order consists of two families:
- Swimming fern family (Salviniaceae)
- Clover family (Marsileaceae)
literature
- Alan R. Smith, Kathleen M. Pryer, Eric Schuettpelz, Petra Korall, Harald Schneider, Paul G. Wolf: A classification for extant ferns. In: Taxon. Volume 55, No. 3, 2006, ISSN 0040-0262 , pp. 705-731, abstract, PDF file .
Web links
Commons : Swimming ferns (Salviniales) - Collection of images, videos and audio files
