Polypodiaceae

PolypodCarpet

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Crypsinus hastatus mitudeurabosi01

Finger Fern Grammitis billardierei - Mt Imlay

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Strap fern dictymia mckeei tindale

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Microsorum pteropus

Platycerium elephantotis - Leveäsarvisaniainen, (Älghornsbräken) IMG 3432 C

Polypodiaceae is a family of ferns belonging to the order Polypodiales, within the class Polypodiopsida. This family, commonly referred to as the polypody family, encompasses a diverse group of ferns with global distribution. Members of the Polypodiaceae family are characterized by their rhizomatous growth form, with the rhizomes often being scaly. The leaves, or fronds, of these ferns can be either simple or highly divided, and they bear spores on the undersides in structures called sori. The sori arrangement and characteristics are key features used in the identification and classification of species within this family.

Classification

The classification of Polypodiaceae has undergone significant changes with advances in molecular phylogenetics. Traditionally, a large number of genera were included within the family. However, recent studies have led to a narrower circumscription, with many genera being reclassified into other families within Polypodiales. Despite these changes, Polypodiaceae remains a large family with several genera and numerous species.

Genera

The Polypodiaceae family includes a variety of genera, some of which are:

• Polypodium – The type genus of the family, Polypodium includes species known for their resilience and adaptability to different environments.
• Microsorum – This genus includes species that are often used in horticulture and as indoor plants.
• Phlebodium – Known for the blue-green color of their fronds, species in this genus are also popular in cultivation.
• Platycerium – The staghorn ferns, recognized for their unique frond shape and growth habit.

Habitat and Distribution

Polypodiaceae ferns are found in a wide range of habitats, from tropical rainforests to temperate zones. They are particularly diverse in tropical regions, where they can be found growing as epiphytes on trees, on rocks, or on the ground in forest understories.

Ecology

Ferns in the Polypodiaceae family play important roles in their ecosystems. As epiphytes, they provide habitats for a variety of organisms and contribute to the diversity of the canopy in tropical forests. On the ground, they can help in soil stabilization and moisture retention.

Uses

Several species within the Polypodiaceae family are of economic importance. Many are cultivated for their ornamental value, while others have been used in traditional medicine. The unique growth forms and textures of these ferns make them popular in gardens and indoor plant collections.

Conservation

Like many plants, Polypodiaceae species face threats from habitat destruction, overcollection, and climate change. Conservation efforts are important to ensure the survival of these diverse and ecologically significant ferns.