• 

  Category:Davalliaceae – Wikimedia Commons

  https://commons.wikimedia.org/wiki/Category:Davalliaceae?uselang=de

  Keine Beschreibung vorhanden.

• 

  West African Plants - A Photo Guide - Browse & Search

  http://www.westafricanplants.senckenberg.de/root/index.php?page_id=17

  Keine Beschreibung vorhanden.

• 

  Pteridophytes and Gymnosperms - Google Books

  https://books.google.de/books?id=8_FxJfTifF4C

  The study of organismic diversity has witnessed an unprecedented upswing in the last two de­ cades. The empirical basis of botanical systematics has been broadened far beyond the realm of macromorphological traits on which systematists have based their…

---

---