April 2011 Journal of Japanese Botany Vol. 86 No.2 115 J. Jpn. Bot. 86: 115–119 (2011) a, b c d d Su-Juan lin *, Takeshi suzuki , Atsushi ebihara , Haisheng lu , Jianqiu liu , e b Sugong Wu and Kunio iwatsuki : A New Record of Polystichum otomasui Sa. Kurata (Dryopteridaceae) from Fujian Province, China aDepartment of Biological Science, Faculty of Life and Environmental Science, Shimane University, Nishikawatsu 1060, Matsue, Shimane, 690-8504 JAPAN bMuseum of Nature and Human Activities, Hyogo, 6, Yayoigaoka, Sanda, Hyogo, 669-1546 JAPAN cDepartment of Botany, National Museum of Nature and Science, 4-1-1, Amakubo, Tsukuba, 305-0005 JAPAN dCollege of Life Science, Fujian Normal University, Fuzhou, Fujian, 350108 P. R. CHINA eKunming Institute of Botany, Chinese Academy of Sciences, 132, Lanheilu, Kunming, Yunnan, 650204 P. R. CHINA *Corresponding author:
[email protected] Summary: Polystichum otomasui Sa. Kurata, which and humid floors along small streams, under had been regarded as an endemic fern to Japan, was mixed Phyllostachys heterocycla, Lithocarpus discovered in the Wuyi Mountains, Fujian Province, and Tsuga evergreen forests. The field research South East China. Cytological investigations area was further enlarged to Mt. Emeifeng (1714 confirmed that the new collections were sexual m alt., 27°03′N, 116°48′E), the southwestern diploids with a chromosome number of 2n = 82 (x = 41) and there were 64 spores per sporangium. These part of the Wuyi Mountains (Fig. 1) in 2008, morphological data (including spore perispores) where a big population (more than a hundred accorded with the characteristics of the Japanese individuals) was found on a path slope under the Polystichum otomasui.