Научные работы
- (1932) Contribution to our knowledge of the flora of the southern part of Japan Taihoku Imperial University, Formosa
- (1945) Boruneo no shokubutsu hoi. Enumeratio pteridophytarum Bornearum Taihoku Imperial University, Taihoku, Formosa;
- (1936) with 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;
- (1954) Flora Kainantensis: A List of Vascular Plants of Taiwan Plant Taxonomic Laboratory, Faculty of Sciences, Taipei National University, Taipei, Taiwan;
- (1933) Phytogeographical position of Japan concerning indigenous genera of vascular cryptogamic plants Taihoku Imperial University, Taihoku, Formosa;
- (1942) Boruneo no kenka shokubutsu. Enumeratio phanerogamarum Bornearum Taihoku Imperial University, Taihoku, Formosa;
Растения, описанные Масамунэ
- Carmona retusa (Vahl) Masam. = Carmona microphylla (Lam.) G.Don
- Begonia formosana (Hayata) Masam.
