CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to the formssubmit new counts,
or report erroneous counts.
Weiss, H., B. y. Sun, T. F. Stuessy, C. H. Kim, H. Kato & M. Wakabayashi. 2002. Karyology of plant species endemic to Ullung Island (Korea) and selected relatives in peninsular Korea and Japan. Bot. J. Linn. Soc. 138(1): 93–105.