K.  Suetsugu, Hsu, T. - C., Fukunaga, H., and Sawa, S., ?Epitypification, emendation and synonymy of Lecanorchis taiwaniana (Vanilleae, Vanilloideae, Orchidaceae)?, Phytotaxa, vol. 265(2), pp. 157 - 163, 2016.

K.  Suetsugu, Tsukaya, H., and Ohashi, H., ?Sciaphila yakushimensis (Triuridaceae), a new mycoheterotrophic plant from Yakushima Island, Japan?, J. Jap. Bot., vol. 91, pp. 1 - 6, 2016.

K.  Suetsugu, ?New locality of the mycoheterotrophic orchid Gastrodia fontinalis from Kuroshima Island, Kagoshima Prefecture, Japan?, J. Jap. Bot., vol. 91(6), pp. 358 - 361, 2016.

K.  Suetsugu and Fukunaga, H., ?Lecanorchis tabugawaensis (Orchidaceae, Vanilloideae), a new mycoheterotrophic plant from Yakushima Island, Japan?, PhytoKeys, vol. 73, pp. 125 - 135, 2016.

K.  Suetsugu, ?A new color variant of the mycoheterotrophic orchid Gastrodia fontinalis from Takeshima Island, Japan?, Acta Phytotax. Geobot., vol. 67(1), pp. 55 - 59, 2016.

K.  Suetsugu, ?Gastrodia kuroshimensis (Orchidaceae: Epidendroideae: Gastrodieae), a new mycoheterotrophic and complete cleistogamous plant from Japan?, Phytotaxa, vol. 278(3), pp. 265 - 272, 2016.

K.  Suetsugu, ?A new color variant of the mycoheterotrophic orchid Cyrtosia septentrionalis from Hiroshima Prefecture, Japan?, J. Jap. Bot., vol. 91, pp. 250 - 253, 2016.

K.  Suetsugu, ?Infestation of the mycoheterotrophic orchid Yoania japonica by the two-winged fly, Chyliza vittata (Diptera: Psilidae)?, Eur. J. Entomol., vol. 113, pp. 393 - 396, 2016.

Y.  Sakamoto, Ogura-Tsujita, Y., Ito, K., Suetsugu, K., Yokoyama, J., Yamazaki, J., Yukawa, T., and Maki, M., ?The tiny-leaved orchid Cephalanthera subaphylla obtains most of its carbon via mycoheterotrophy?, J. Plant Res., vol. 129(6), pp. 1013 - 1020, 2016.

K.  Shutoh, Kaneko, S., Suetsugu, K., Naito, Y. I., and Kurosawa, T., ?Variation in vegetative morphology tracks the complex genetic diversification of the mycoheterotrophic species Pyrola japonica sensu lato?, Am. J. Bot., vol. 103 )9, pp. 1618 - 1629, 2016.