Verbatim text: Nakai, T. 1915-1936. Flora Sylvatica Koreana.... 22 parts. Seoul and Keijyo. Part 21, pp. 61-62.
Author: Nakai, T.
Year: 1915-1936
Title: Flora Sylvatica Koreana
Volume: 21
Pages: 61–62
Note: 22 parts.