New combinations in the Cyperaceae of the Galapagos IslandsTetsuo Koyama · First published 1970Open the Tome
The Cyperaceae of tropical America - some new or critical speciesTetsuo Koyama · First published 1969Open the Tome
The systematic significance of leaf structure in the Cyperaceae-MapanieaeTetsuo Koyama · First published 1966Open the Tome
Interrelationships between the tribes Lagenocarpeae and Sclerieae (Cyperaceae)Tetsuo Koyama · First published 1965Open the Tome
Available knowledge of the flora of Japan and its neighbouring regionsTetsuo Koyama · First published 1961Open the Tome
Identity of Pollinia japonica Miquel, and transfers of names as to the Japanese species of MicrostegiumTetsuo Koyama · First published 1959Open the Tome
