Clinging Snakefern vs Harmless Serotine

Microgramma heterophylla compared with Eptesicus innoxius

Key Differences

• Clinging Snakefern is Least Concern while Harmless Serotine is Near Threatened.

Taxonomic Classification

Rank	Clinging Snakefern	Harmless Serotine
Kingdom	Plantae (thực vật)	Animalia (động vật)
Phylum	Tracheophyta	Chordata (động vật có dây sống)
Class	Polypodiopsida (Lớp Dương xỉ)	Mammalia (lớp Thú)
Order	Polypodiales (Bộ Dương xỉ)	Chiroptera (bộ Dơi)
Family	Polypodiaceae	Vespertilionidae
Genus	Microgramma	Eptesicus
Species	Microgramma heterophylla	Eptesicus innoxius

Conservation Status

Clinging Snakefern

LC — Least Concern

Harmless Serotine

NT — Near Threatened

Physical Characteristics

Attribute	Clinging Snakefern	Harmless Serotine
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clinging Snakefern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Found in Cuba.

Harmless Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Clinging Snakefern

Clinging Snakefern, Microgramma species, is a genus of small epiphytic ferns in the family Polypodiaceae found in tropical and subtropical forests of the Americas, from Florida and the Caribbean through Central America to South America. The ferns cling tightly to tree bark and rock surfaces using creeping rhizomes with specialized clinging scales, making them true epiphytes that depend entirely on the host surface for physical support while deriving all their water and nutrients from rainfall and atmospheric deposition. The common name 'snakefern' refers to the slender, creeping rhizomes that resemble snakes threading through moss and bark. The fronds are small and simple, either entirely fertile bearing sori on their undersurface or sterile with entire margins. Clinging snakeferns contribute to the high epiphyte diversity of tropical forest canopies and are important components of the moss-and-lichen matrix on tree trunks in humid forests. They are sensitive to moisture availability and desiccation and are among the first species to decline when humid forest is cleared or fragmented. Several Microgramma species are used as ornamental plants in warm-climate gardens for their ability to creep over rocks and tree stumps. Conservation status varies by species within the genus.