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Shiro TSUYUZAKI
Plant community ecology / Environmental conservation

Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

(Update on December 11 2009)

Japanese holly fern
Cyrtomium fortunei J. Sm. [Dryopteridaceae]

Yabusotetsu (ヤブソテツ, 藪蘇鉄)

Lifeform: evergreen fern
Distribution: east Asia, including Japan (Ryukyu - southern Hokkaido)
Habitat: rocky surfaces and woodlands


Cyrtomium C. Presl

Nine species in Japan.

C. actidens Christ ex Matsum. (キレハヤブソテツ)
C. balansae (Christ) C. Chr. (ミヤジマシダ)

- f. bipinnatum Kurata (オニミヤジマシダ)

C. caryotideum (Wall. ex Hook. et Grev.) Presl (メヤブソテツ)
C. devexiscapulae (Koidz.) Ching (ナガバヤブソテツ)
C. falcatum (L. fil.) Presl (オニヤブソテツ)
C. fortunei J. Sm. (ヤブソテツ, s.l.)

- var. atropunctatum (Kurata) K. Iwatsuki (イズヤブソテツ)
- var. fortunei (ヤブソテツ, s.s.) - var. clivicola (Makino) Tagawa (ヤマヤブソテツ)
- var. intermedium Tagawa (ミヤコヤブソテツ)

C. hookerianum (Pr.) C. Chr. (ホソバヤブソテツ)
C. laetevirens (Hiyama) Nakaike (テリハヤブソテツ)
C. macrophyllum (Makino) Tagawa

- var. macrophyllum (ヒロハヤブソテツ)
- var. tukusicola (Tagawa) Tagawa (ツクシヤブソテツ)
- var. microindusium (Kurata) K. Iwatsuki (クマヤブソテツ)


Cyrtomium fortunei in Japan

ST ST ST
[Left] a foliage structure [Center] a leaf. [Right] close-up of the top of leaf. At Rakuju-en Garden, Mishima, on November 18 2009. Thanks, Sato-san.

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