Thelypteris yaucoensis

Thelypteris yaucoensis
Scientific classification
Kingdom: Plantae
Division: Polypodiophyta
Class: Polypodiopsida
Order: Blechnales
Family: Thelypteridaceae
Genus: Thelypteris
Species: T. yaucoensis
Binomial name
Thelypteris yaucoensis
Proctor

Thelypteris yaucoensis is a rare species of fern known by the common name Puerto Rico maiden fern.[1] It is endemic to Puerto Rico, where it is known from only three localities. It is a federally listed endangered species of the United States.

This fern was placed on the endangered species list in 1993. At that time it was known to exist at three locations: two in Yauco and one in Ciales in Puerto Rico. There are a total of about 65 plants known at all three combined.[2]

This terrestrial fern has fronds up to 52 centimeters long with the blades divided into 13 to 15 pairs of segments.[2]

References

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