Ono Ranzan

[2] In 1754, he opened a school of botanical pharmacology (pharmacognosy) which enjoyed considerable success, with over a thousand pupils enrolling.

[5][6] Some of Ono's own works on Japanese botany were translated by the French botanist Ludovic Savatier.

[7] In the early years of the nineteenth century, Ono travelled around Japan gathering information on botanical remedies, which culminated in his most important literary work, the Honzō Kōmoku Keimō (本草綱目啓蒙, "Dictated Compendium of Materia Medica"), which was edited by his botanist grandson Ono Mototaka,[8][9][10] and first published in 1803–1806.

[2][11] It was a piece on natural history espousing viewpoints independent from China's Honzō Kōmoku (the Bencao Gangmu).

[2] After his death in 1810 he was interred at Asakusa; however, his remains were moved to Nerima in 1927 after the graveyard was damaged in the Great Kantō earthquake.