from R.E.G.Pichi Sermolli Oct. 1991. Full name and year of birth from Pichi Sermolli, Authors of Sci. Names Pterid.: 42 (1996). T. Shimizu confirmed that the Saxifraga Otsuka in the same as the K. Otsuka in APN.
Example of Name Published
Asplenium x akaishiense K. Otsuka in J. Geobot., 24(4): 80 (1977). Saxifraga fortunei f. crassa (Nakai) Otsuka ex T. Shimizu, Fl. Nagano Pref.: 1508 (1997).