Abstract
The paper presents a taxonomic review of Bulbophyllum section Rhytionanthos for the flora of Vietnam and provides the key for its species’ identification. A new species, B. truongtamii and a new variety, B. taeniophyllum var. denticulatoalatum are described for science. Bulbophyllum nodosum is reported for the first time from the country. Bulbophyllum strigosum, described 20 years ago based on cultivated plant of uncertain origin was rediscovered in NE Vietnam. For this species, location and detailed description are reported. Analytical photos, data on phenology, ecology, and distribution are presented for all studied species. The morphological comparison table of the new species, new variety and newly recorded species segregating them from similar species are presented.
References
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Averyanov, L.V. & Averyanova, A.L. (2003) Updated Checklist of the Orchids of Vietnam. Vietnam National University Publishing House. 101 pp.
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Chowlu, K & Rao, N.A. (2014) Four new records of Bulbophyllum (Orchidaceae) for Manipur, Inda. Richardiana 15: 151–160.
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Rao, A.S. & Balakrishnan, N.P. (1968) Bulbophyllum brachypodum nom. nov. with two new varieties. The bulletin of the Botanical survey of India 10: 350–352.
Reichenbach, H.G. (1874a) Contributions to Orchidology, new orchids discovered by the Rev. C. Parish, at Moulmein. Journal of botany, British and foreign 12: 196–199.
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Seidenfaden, G. (1979) Orchid genera in Thailand 8: Bulbophyllum. Dansk Botanisk Arkiv 33 (3): 1–228.
Seidenfaden, G. (1992) The Orchids of Indochina. Opera Botanica 114: 1–502. https://doi.org/10.1111/j.1756-1051.1993.tb00015.x
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Smith, J.J. (1912) Bulbophyllum Thou. Sect. Cirrhopetalum. Bulletin du Jardinbotanique de Buitenzorg Ser. 2, no. 8: 19–29.
Smith, W.W. (1921) New orchids from Yunnan an Northern Burma. Notes from the Royal Botanic Garden, Edinburgh 13: 189–222.
Verma, D. & Lavania, S. (2014) Additions to the Orchid flora of Meghalaya, India. Richardiana 15: 105–114.
Vermeulen, J.J., Schuiteman, A. & De Vogel, E.F. (2014) Nomenclatural changes in Bulbophyllum (Orchidaceae; Epidendroideae). Phytotaxa 166 (2): 101–113. https://doi.org/10.11646/phytotaxa.166.2.1
Averyanov, L.V. & Averyanova, A.L. (2003) Updated Checklist of the Orchids of Vietnam. Vietnam National University Publishing House. 101 pp.
Averyanov, L.V., Nguyen, S.K., Nguyen, T.T., Nguyen, P.T., Nong, V.D., Nguyen, V.C. & Chu, X.C. (2015) New orchids in the flora of Vietnam. Wulfenia 22: 137–188.
Bennet, S.S.R. (1983) Bulbophyllum yoksunense var. geei (A.S.Rao & N.P.Balakr.) Bennet. Journal of Economic and Taxonomic Botany 4: 592.
Bull, W. (1891) New plants: Cirrhopetalum mundulum. The Gardeners’ chronicle 9: 676–677.
Chen, X. & Vermeulen, J.J. (2009) Bulbophyllum. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China. Vol. 25. (Orchidaceae). Science Press, Beijing and Missouri Botanical Garden Press, St. Louis, pp. 404–440.
Chowlu, K & Rao, N.A. (2014) Four new records of Bulbophyllum (Orchidaceae) for Manipur, Inda. Richardiana 15: 151–160.
Garay, L.A., Hamer, F. & Siegerist, E.S. (1994) The genus Cirrhopetalum and the genera of the Bulbophyllum alliance. Nordic Journal of Botany 14: 609–646. https://doi.org/10.1111/j.1756-1051.1994.tb01080.x
Garry, L.A. (1999) Orchid species currently in cultivation. Harvard Papers in Botany 4 (1): 301–319.
Hooker, J.D. (1890) Flora of British India 5. London. 910 pp.
Finet, A.E. (1897) Orchidées nouvelles: Bolbophyllum pectinatum; Cirropetalum emarginatum. Bulletin de la Société botanique de France 44: 268–269.
Koenig, J.G. (1791) Descriptiones Epindendrorum in India Orientali factae. In: Retzius, A.J. (Ed.) Fasciculus Observationum Botanicarum 6. Leipzig, pp. 43–67.
Kuntze, O. (1891) Revisio generum plantarum 2. Leipzig. 1011 pp.
Lindlley, J. (1838) Cirrhopetalum cornutum in Miscellaneous notices 24. Edwards’s botanical register (Misc.) 24: 75.
Pearce, N.R. & Cribb, P.J. (2002) The orchids of Bhutan. Vol. 3, Part 3. Royal Botanic Garden Edinburgh, Kew and Royal Government of Bhutan, 643 pp.
Rao, A.S. & Balakrishnan, N.P. (1968) Bulbophyllum brachypodum nom. nov. with two new varieties. The bulletin of the Botanical survey of India 10: 350–352.
Reichenbach, H.G. (1874a) Contributions to Orchidology, new orchids discovered by the Rev. C. Parish, at Moulmein. Journal of botany, British and foreign 12: 196–199.
Reichenbach, H.G. (1874b) Bulbophyllum simillimum and Cirrhopetalum simillimum in Orchidaceae E.C. Parishianae burmenses. Otia botanica Hamburgensia. 89 pp.
Ridley, H.N. (1911) Orchidaceae in The Flora of lower Siam. Journal of the Straits Branch of the Royal Asiatic Society 59: 15–26.
Ridley, H.N. (1924) Bulbophyllum punctatissimum in Orchidaceae. In: The flora of the Malay Peninsula 4: Monocotyledones. London, L. Reeve & co., ltd. 383 pp.
Rolfe, R.A. (1895) New orchids 13. Bulletin of miscellaneous information (Royal Gardens, Kew) 1895: 33–37. https://doi.org/10.2307/4115490
Seidenfaden, G. (1973) Notes on Cirrhopetalum Lindl. Dansk Botanisk Arkiv 29: 1–260.
Seidenfaden, G. (1979) Orchid genera in Thailand 8: Bulbophyllum. Dansk Botanisk Arkiv 33 (3): 1–228.
Seidenfaden, G. (1992) The Orchids of Indochina. Opera Botanica 114: 1–502. https://doi.org/10.1111/j.1756-1051.1993.tb00015.x
Schlechter, R. (1913) Die Orchidaceen von Deutsch-New-Guinea. In: Repertorium Specierum Novarum Regni Vegetabilis. Beihelft 1. pp. 1–1079.
Smith, J.J. (1912) Bulbophyllum Thou. Sect. Cirrhopetalum. Bulletin du Jardinbotanique de Buitenzorg Ser. 2, no. 8: 19–29.
Smith, W.W. (1921) New orchids from Yunnan an Northern Burma. Notes from the Royal Botanic Garden, Edinburgh 13: 189–222.
Verma, D. & Lavania, S. (2014) Additions to the Orchid flora of Meghalaya, India. Richardiana 15: 105–114.
Vermeulen, J.J., Schuiteman, A. & De Vogel, E.F. (2014) Nomenclatural changes in Bulbophyllum (Orchidaceae; Epidendroideae). Phytotaxa 166 (2): 101–113. https://doi.org/10.11646/phytotaxa.166.2.1