A New Name for Wasabia koreana (Brassicaceae) in South Korea

2008·1.6 MB·English

by  Hyunchur Shin

A New Name for Wasabia koreana (Brassicaceae) in South Korea
Hyunchur Shin
Department of Biology, Soonchunhyang University, Asan, Chungnam 336-745, Korea
Young-Dong Kim
Department of Life Science, Hallym University, Chunchon, Kangwon 200-702, Korea.
[email protected]
Abstract. A new name, Cardaminepseudowasabi H. Because the name C. koreana Nakai (Nakai. 1952) is
Shin & Y. D. Kim (Brassicaceae), is proposed for
Wasabia koreana Nakai because the transfer of the misplaced species.
epithet to Cardamine L. would create a later
homKeoyn ywmo. rds: Brassicaceae, Cardamine, South Korea, Cardnaommi.n en opvs. euRdeopwlaacseadb in aHm. eS: hiWn a&sa bYia. Dk.o rKeaimna,
Nakai, J. Jap. Bot. 11: 150. 1935, non Cardamine
rnoaylWlayl asdtaoebmsiacb r ikboienrd e aSnaoasu tNha akKnaeiow re( Nas.a pkeaBciie,e csa1 u9s3be5a )s et he fagmenouuss Tk1[G3oo yrke(eyhaooonn lago3 gt1yi(]:Np: eaG4,k 9wTa.iI a)) n.1 gN9r5ea2uk.na gi,T, YABPpuErl.l :. 19KN3oa4tr,le .a R..S cKKi.. y SuMmnguitgshi.
Wasabia Matsumura is no longer accepted, Baik et
al. (1986) transferred the species to Eutrema R. Brown resembles C. yezoensis Maximowicz, but clearly differs
and proposed a new name, E. koreanum (Nakai) K. from the latter by having simple leaves (including the
Hammer. The plant depicted in the articdo, however, basal ones; sec Fig. 1) and a densely pubescent stem
does not appear to be W. koreana but looks very and leaf margin. Moreover, C. yezoensis ranges from
similar to a vegetable species introduced from Japan, Hokkaido to Sakhalin (Bush, 1939; Ohwi, 1985),
W. japonica (Miquel) Matsumura, implying that they while the type locality of C. pseudowasabi is far more
referred to the wrong species. Since then, in some southern (37CN). It is known that C. yezoensis is
al., 2001), W. koreana as well as W. japonica are and stem (Bush, 1939). The plants of C. pseudowasabi
imowiez. Recently, Al-Shehbaz and Warwick (2005) since the original gathering, so there is no collection
considered E. wasabi a synonym of E. japonicum except for the holotype. More collections and
(Miquel) Koidzumi since the combination made by extended research including specimens that encom¬
Zhou et al. (2001) was based on the nomen nudum pass the entire geographical range of C. yezoensis are
needed to be certain that C. pseudowasabi is not an
mate. Unfortunately, these changes for W. koreana
were apparently conducted without referring to the
type specimen. Acknowledgments. The authors thank TI for ac¬
In a taxonomic review of Wasabia koreana, we cess to valuable collections, and appreciate the
carefully examined the hololype deposited in TI valuable comments by Ihsan Al-Shehbaz and one
(Fig. 1) and concluded that Nakai misidentified the anonymous reviewer. This work was supported by the
i Wasabia. The type specimen exhibits Basic Research Program of the 1
morphological characters typical of Cardamine L. Engineering Foundation (R01-2004-000-10712-0)
and by the Eco-Technopia 21 project on environmen¬
well as simple trichomes on the leaf margin (I. A. Al- tal technology development (05002-0028-0).
Shehbaz, pers. comm.). In addition, the specimen has
no mucronate callosities on the leaf margin, which are
diagnostic features observed in Eutrema (Zhou et al.,
2001). Its transfer to Cardamine is clearly needed. Eutrema (Brassicaceae). Harvard Pap. Bot. 10: 129-1,15.
Novon 18: 384-386. Published on September 2008. doi: 10.3417/2005152
Volume 18, Number 3 Shin & Kim
2008 New name for Wasabia koreana
(Brassicaceae)