Polypodiaceae is a family of polypod ferns, which includes approximately 50 genera divided into several tribes containing around 1,000 species. Nearly all are epiphytes, but some are terrestrial.
Their stems range from erect to long-creeping. The fronds are entire, pinnatifid, or variously forked or pinnate. The petioles lack stipules. The scaly rhizomes are generally creeping in nature.
Polypodiaceae species are found in wet climates, most commonly in rain forests.
American Chemical Society's Weekly PressPac Mon, 06 Oct 2008 00:00:00 -0400 (American Chemical Society) The American Chemical Society News Service Weekly Press Package contains reports from 36 major peer-reviewed journals on chemistry, health, medicine, energy, environment, food, nanotechnology and other hot topics. H. Pylori bacteria may help prevent some esophageal cancers Mon, 06 Oct 2008 00:00:00 -0400 (American Association for Cancer Research) Some bacteria may help protect against the development of a type of esophageal cancer, known as adenocarcinoma, according to a new review of the medical literature. These bacteria, which are called Helicobacter pylori, live in the stomachs of humans. Metastatic movements in 3-D Mon, 06 Oct 2008 00:00:00 -0400 (Rockefeller University Press) Caswell et al. report in the Journal of Cell Biology how the altered behavior of integrins can prompt metastatic movement in tumor cells.
Genera in Polypodiaceae - Genus list with authorities and synonyms compiled at Royal Botanic Gardens, Kew.
Polypodiaceae - Expandable thumbnail images of three Hawaiian representatives of this family of mostly epiphytic or sometimes terrestrial ferns comprising about 50 genera and 550 mostly tropical species.
Polypodiaceae - Images from the Vascular Plant Image Gallery at Texas AM University (Platycerium bifurcatum, Pleopeltis polypodioides, Polypodium sp.).
Polypodiaceae - List of genera in Manual de Flora de Costa Rica.
Polypodiaceae Listing (BONAP) - Query the Biota of North America Program text database for eleven genera, view generic diversity maps, or a Family-level diversity map.