Dang Minh Quan , Dang Van Son , Averyanov V. Leonid , Nguyen Tran Vy , Truong Quang Tam , Nguyen Quoc Bao and Truong Ba Vuong *

* Correspondence: Truong Ba Vuong (email: bavuong2019@yahoo.com)

Main Article Content


Bulbophyllum tseanum was found in Quang Nam Province. It is a new record for the orchid flora of Vietnam. Previously this species was recorded in Hong Kong and Hainan (South-East China). Living specimens were collected in Quang Nam province and flowering successfully in a private garden in Da Lat city, Lam Dong province. Based on morphological characters, B. tseanum is very close to B. lepidum in the plant habit, shape, and color scheme of flowers, but can be distinguished by broadly ovate dorsal sepal, longer lateral sepals, narrow petals with shortly caudate apex, size of stelidia and column wing shape. The description of Vietnamese plants is presented, accompanied by the analytical plate and taxonomic notes.

Keywords: Bulbophyllum lepidum, Bulbophyllum sect. Ephippium, New record, Plant diversity,, Plant taxonomy

Article Details


Averyanov, L.V., Nguyen, S.K., Truong, B.V., Nguyen, V.C., Maisak, T.V., Tran, H.T., Pham, T.T.D & Tu, B.N. (2019). New species of Bulbophyllum (Orchidaceae) in the flora of Vietnam Ⅱ . Phytotaxa, 404(6), 231–244. https://doi.org/10.11646/phytotaxa.404.6.2

Beentje, H. (2016). The Kew Plant Glossary, an illustrated dictionary of plant terms (2 ed.). Royal Botanic Garden, Kew, Richmond. 184 pp.

Chen, X. & Vermeulen, J.J. (2009). Bulbophyllum. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China. Vol. 25. (Orchidaceae). pp. 404–440. Science Press, Beijing and Missouri Botanical Garden Press, St. Louis.

Hu, S.Y. & Barretto, G. (1976). New species and varieties of Orchidaceae from Hong Kong. Chung Chi Journal, 13(2), 1 – 34.

Nguyen, V.T., Averyanov, L.V., Dang, V.S., Maisak, T.V., Bui, V.H., Dang, M.Q., Boo, S.M. & Truong, B.V. (2022). A new species of Bulbophyllum from northern of Vietnam. Phytotaxa, 542(1), 95–99. https://doi.org/10.11646/phytotaxa.542.1.9.

Truong, B.V., Dang, V.S., Tran, H., Maisak, T.V. & Averyanov, L.V. (2020). Bulbophyllum sridithii (Orchidaceae), new species from Vietnam. Taiwania, 65(4), 473‒477. https://doi.org/10.6165/tai.2020.65.473

Tsi, Z.H. (1999). Bulbophyllum Thou. In: Chen, S.C., Tsi, Z.H., Lang, K.Y. & Zhu, G.H. (Eds.) Flora Reipublicae Popularis Sinicae, vol. Science Press, Beijing, China, pp. 164–257 [in Chinese].

Tsi, Z.H., Chen, X., & Ding, S.Y. (1995). Critical and Additional Notes on Orchids of Hainan, China. Acta Phytotaxonomica Sinica, 33(6), 576 – 591.

Vermeulen, J.J., O’Byrne, P. & Lamb, A. (2015). Bulbophyllum of Borneo. Natural History Publications (Borneo). 728 pp.

Vermeulen, J.J., Fischer, G., Smidt, E. de C., Stern, W.L., Pridgeon, A.M., Veitch, C., Sieder, A., Vugt, R. Van & Gravendeel, B. (2014) Bulbophyllum. In: Pridgeon, A.M., Cribb, P.J., Chase, M.w. & Ramussen, F.N. (Eds.) Genera Orchidacearum 6, Epidendroideae 3. pp. 4–51. UK, Oxford University Press.