There were 7 illustrations found for J. Koyama
2 200406 Carex kobomugi OhwiJ. Ohwi, Flora of Japan (in English): t. 1, fig. 1-19 (1965) [J. Koyama]
2 201074 Carex macrocephala Willd. ex SprengelJ. Ohwi, Flora of Japan (in English): t. 1, fig. 20-29 (1965) [J. Koyama]
2 176942 Calanthe oblanceolata Ohwi & T.KoyamaJ. Ohwi, Flora of Japan (in English): t. 3 (1965) [J. Koyama]
1 623202 Luisia teres (Thunb.) Blume [181 387839 Epidendrum teres Thunb.]J. Ohwi, Flora of Japan (in English): t. 4 (1965) [J. Koyama]
2 277460 Corydalis ochotensis Turcz.J. Ohwi, Flora of Japan (in English): t. 6 (1965) [J. Koyama]
193639 Cardamine appendiculata Franch. & Sav.J. Ohwi, Flora of Japan (in English): t. 7 (1965) [J. Koyama]
1 603508 Ligularia stenocephala (Maxim.) Matsum. & Koidz. [181 938377 Senecio stenocephalus Maxim.]J. Ohwi, Flora of Japan (in English): t. 17 (1965) [J. Koyama]