Cyrtomium
Encyclopedia
Cyrtomium is a genus of about 15-20 species of fern
s in the family Dryopteridaceae
, native to Asia
, Africa
(including Madagascar
), and the Pacific Ocean
islands (Hawaii
). The genus is very closely related to the genus Polystichum
, with recent research suggesting it should be included within it (Little & Barrington).
Selected species
Fern
A fern is any one of a group of about 12,000 species of plants belonging to the botanical group known as Pteridophyta. Unlike mosses, they have xylem and phloem . They have stems, leaves, and roots like other vascular plants...
s in the family Dryopteridaceae
Dryopteridaceae
Dryopteridaceae, is a family of leptosporangiate ferns in the order Polypodiales. They are known colloquially as the wood ferns. They comprise about 1700 species and have a cosmopolitan distribution. They may be terrestrial, epipetric, hemiepiphytic, or epiphytic. Many are cultivated as...
, native to Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...
, Africa
Africa
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
(including Madagascar
Madagascar
The Republic of Madagascar is an island country located in the Indian Ocean off the southeastern coast of Africa...
), and the Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...
islands (Hawaii
Hawaii
Hawaii is the newest of the 50 U.S. states , and is the only U.S. state made up entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean, southwest of the continental United States, southeast of Japan, and northeast of...
). The genus is very closely related to the genus Polystichum
Polystichum
Polystichum is a genus of about 260 species of ferns with a cosmopolitan distribution. The highest diversity is in eastern Asia, with about 120 species in China alone; the region from Mexico to Brazil has nearly 100 additional species; Africa , North America , and Europe have much lower diversity...
, with recent research suggesting it should be included within it (Little & Barrington).
Selected species
- Cyrtomium caryotideum (Wallich) C.Presl
- Cyrtomium falcatumCyrtomium falcatumCyrtomium falcatum is a species of fern known by the common name Japanese holly fern. It is native to eastern Asia.It grows from crevices, coastal cliffs, streambanks, rocky slopes, and other moist, stable areas.-Description:...
(L.f.) C.Presl (Japanese Holly Fern or Holly Fern) - Cyrtomium fortunei J.Sm.
- Cyrtomium macrophyllum (Makino) Tag.
- Cyrtomium micropterum (Kunze) Ching
External links
- Little D. P. & Barrington, D. S. Abstract: Relationships of Cyrtomium and Polystichum
- List of published names in Cyrtomium (includes synonyms)
- Cyrtomium falcatum