Trabajó en Formosa y luego, tras la Segunda Guerra Mundial, en Taiwán. Desarrolló exhaustivos índices botánicos de Borneo y de Taiwán, como asimismo en la identificación y clasificación de un gran número de nuevas especies.
Carmona retusa Masam.
Algunas publicaciones
1954a. Flora Kainantensis: A List of Vascular Plants of Taiwan Plant Taxonomic Laboratory, Faculty of Sciences, Taipei National University, Taipéi, Taiwán
1954b. A new species of Lilium from the Island of Sado. Faculty of Science, Kanazawa University. 2 pp.
1953. Flora Kainantensis. Report, U.S. Geological Survey, Pacific Geological Surveys. Ed. The Branch. 28 pp.
1945. Boruneo no shokubutsu hoi. Enumeratio pteridophytarum Bornearum Taihoku Imperial University, Taihoku, Formosa, 124 pp.
1942. Addition to My "Enumeration Phanerogamarum Bornearum
1936. Con Fukuyama, Noriaki Short flora of Formosa; or, An enumeration of higher cryptogamic and phanerogamic plants hitherto known from the island of Formosa and its adjacent islands "Kudoa", Taihoku, Formosa. 410 pp.
1934. Floristic and geobotanical studies on the island of Yakusima, province Osumi. Memoirs of the Faculty of Science and Agriculture, Taihoku Imperial University, Vol. 11. 637 pp.
1934. On the Phytogeography Od the Ryukyo Archipelago
1933. On the Occurrence of Durisilvae in Japan
1933. Phytogeographical position of Japan concerning indigenous genera of vascular cryptogamic plants Taihoku Imperial University, Taihoku, Formosa. 314 pp.
1933. A List of Orchidaceous Plants Indigenous to Formosa. Tropical Horticulture 3 (1-4) Ed. Taiwan Horticul. Soc. 37 pp.
1932. Contribution to our knowledge of the flora of the southern part of Japan Taihoku Imperial University, Formosa
1930. Contribution to our knowledge of the flora of the southern part of Japan. Contributions from the Herbarium of Taihoku Imperial University
