(First upload on April 9 2012. Last on March 24 2014) [ 日本語 | English ]

Dicranopteris linearis (Burm. f.) Underw.

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

Koshida (コシダ, 小羊歯), old world forked fern
Lifeform: evergreen perennial fern
Distribution: sub-tropical regions, including southern Japan (not in Hokkaido)
Habitat: scattered forests, including forest edges
Wildfire: considered to be one cause of wildfire, because of the development of thick litter

Dicranopteris dichotoma (Thunb.) Bernh. [adopted by Tagawa]
Dicranopteris pedata (Houtt.) Nakaike
Dicranopteris linearis (Burm. f.) Underw. var. dichotoma (Thunb.) Holttum

var. ferruginea (Blume) Rac. (ナンヨウコシダ)
var. tetraphylla (Rosenst.) Nakai (オニコシダ)
f. shinagawae (H. Ito) Sugim. (イキノコシダ)

Dicranopteris Bernh. (コシダ) in Japan


D. linearis (Burm.f.) Underw. (コシダ)
D. laevissimum (H. Christ) Nakai (カネコシダ)
Cf. Diplopterygium glaucum (Gleicheniaceae)

Dicranopteris linearis in Japan

[1-3] in the campus of Ryukoku University (Ryukoku Forest), Otsu City, eastern Japan, on March 17 2012. [4] on a trail to go Mount Yatsu near Shizuoka Gokoku Shrine*, Shizuoka Prefecture, on March 5 2013. (*: Shinto shrines designated as places of worship for those who died in the war) [5] on Mount Misen (弥山, 535 m elevation), Hiroshima Prefecture, on March 16 2014.