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Red Data Book of Kyoto Prefecture 2015

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Endangered pteridophytes in Kyoto Prefecture

Pteridophytes found in Kyoto Prefecture fall into 357 species from 24 families and three orders, of which five extinct, 36 critically endangered, 33 endangered, 16 vulnerable, and 32 near threatened & least concern species are listed in the Kyoto Prefecture Red Data Book. Of the species observed in the prefecture, threatened species account for 34.1%.
The List of Biological and Geological Components of the Natural Environment of Kyoto Prefecture (Japanese)
Kyoto Prefecture Red List (Japanese)

Kyoto Prefecture Red List

  Extinct Critically Endangered Endangered Vulnerable Near Threatened & Least Concern Sum Total number of species in Kyoto
Pteridophytes 5 36 33 16 32 122 357

Typical endangered species

YASHAZENMAI
Common Name(s)
none
Family
Osmundaceae
Scientific Name
Osmunda lancea
Thumb. ex A. Murray
Kyoto Prefecture Red List
Vulnerable
IUCN RED LIST

Outline
This species is a thermophilic perennial plant that grows on streamside rocks. The base of its pinnule grows in the form of a wedge.
Endemic to Japan

HIMEMUKAGOSHIDA
Common Name(s)
none
Family
Dennstaedtiaceae
Scientific Name
Monachosorum arakii
Tag.
Kyoto Prefecture Red List
Critically Endangered
IUCN RED LIST

Outline
An evergreen perennial plant, this species grows to a blade length of 50 to 60 cm and a blade width of 30 to 40 cm. It produces large bulbils at branch points of intermediate to upper pinna bases.
Endemic to Japan

OAKAUKIKUSA
Common Name(s)
none
Family
Azollaceae
Scientific Name
Azolla japonica
Franch. & Savat.
Kyoto Prefecture Red List
Critically Endangered
IUCN RED LIST

Outline
This species is an evergreen perennial waterweed that floats on the water surface or on wet soil. Its scale-like leaves are light to dark reddish purple in color.
Endemic to Japan

MOTOMACHIHANAWARABI
Common Name(s)
none
Family
Ophioglossaceae
Scientific Name
Botrychium sp.
Kyoto Prefecture Red List
Critically Endangered
IUCN RED LIST

Outline
This species is an evergreen perennial plant. It grows under the shade of trees or at the edge of forests. It has glossy leaves and finely split or parted pinnules.

MATSUBARAN
Common Name(s)
Skeleton fork fern
Family
Psilotaceae
Scientific Name
Psilotum nudun
(L.) P. Beauv.
Kyoto Prefecture Red List
Critically Endangered
IUCN RED LIST

Outline
An evergreen perennial plant, this species has stems that branch into two forks several times, has noticeable raised lines, and has sparse alternate scale-like leaves.

HIKAGEWARABI
Common Name(s)
none
Family
Athyriaceae
Scientific Name
Diplazium chinese
(Bak.) C. Chr.
Kyoto Prefecture Red List
Critically Endangered
IUCN RED LIST

Outline
This species is a perennial plant, although its aerial part dies back during the winter. Its blades have the shape of a broad triangle.

Top > Plants & Fungi > Pteridophytes

Contact: Kyoto Prefecture Department of the Environment
Nature and Environmental Conservation Division
Tel 075-414-4706 FAX 075-414-4705
e-mail: [email protected]
〒602-8570 Yabunouchi-cho, Nishiiru, Shinmachi, Shimodachiuri-dori, Kamigyo-ku, Kyoto-shi

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