Davalliaceae is a family of ferns in the order Polypodiales. It is sister to the largest family of ferns, Polypodiaceae, and shares some morphological characters with it. Davalliaceae is native to tropical and subtropical regions of the Pacific, Australia, Asia, and Africa. They are small to medium in size. In the wild, they are usually epiphytic,... Found on http://en.wikipedia.org/wiki/Davalliaceae
(from the article `fern`) ...the indusia opening inward; young foliage commonly red, turning to green; genera number 5 to 10 (including Blechnum, Woodwardia) with 250 ... Found on http://www.britannica.com/eb/a-z/d/12