CAMELLIA THUANANA (CAMELLIA SECT. CHRYSANTHA) – A NEW SPECIES FROM THE CENTRAL HIGHLANDS, VIETNAM

Authors

  • Hoang Thanh Truong Forest Science Institute of Central Highlandsand South of Central Vietnam, Viet Nam
  • Le Hong En Forest Science Institute of Central Highlands and South of Central Vietnam (FSIH), Viet Nam
  • Nguyen Thi Lieu Botanical Gardens of Osaka City University, Japan

DOI:

https://doi.org/10.37569/DalatUniversity.12.3.931(2022)

Keywords:

Camellia thuanana, Lam Dong province, Vietnam, Yellow Camellia.

Abstract

Camellia thuanana, a new species of the genus Camellia L. (Theaceae) is described and illustrated from the Central Highlands, Vietnam. Morphological features of this species are small flowers and pedicellate; leaves stalked, anastomosing venation, blades oblong-elliptic to elliptic, sparsely hirsute along the midrib below; pedicel very short; bracteoles 2–3, triangular; sepals 4–(5) in opposite pairs; corolla light greenish-yellow color; petals 7–8, glabrous; androecium 190–200 stamens, light yellow, in 3–4 circles; gynoecium 3, ovary ovoid and pubescent; styles 3, free to the base, and glabrous. C. thuanana resembles C. thuongiana in some morphological characteristics. C. thuanana is classified into sect. Chrysantha by styles completely free, flowers yellow, ovaries 3–5 locular, and partially connate. The IUCN Redlist Category of C. thuanana was assessed as Critically Endangered (CR).

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References

Le, Q. P., Nguyen, H. Đ. K., Nguyen, T. H., Dinh, M. H., & Ngo. K. S. (2020). In vitro antioxidant and DNA protection activities of extracts from selenium-enriched Ophiocordyceps sinensis (pp. 268-273). Proceedings of the 2020 Vietnam National Conference on Biotechnology. http://huib.hueuni.edu.vn/wp-content/uploads/2020/12/268-273.pdf

Li, H., Zhou, G. -Y., Zhang, H. -Y. & Liu, J. -A. (2011). Research progress on the health function of tea oil. Journal of Medicinal Plants Research, 5(4), 485-489.

Liang, H., Hao, B. Q., Chen, G. C., Ye, H., & Ma, J. (2017). Camellia as an oilseed crop. American Society for Horticultural Science, 52(4), 488-497. https://doi.org/10.21273/HORTSCI11570-16

Liu, L., Hudgins, W. R., Shack, S., Yin, M. Q., & Samid, D. (1995). Cinnamic acid: A natural product with potential use in cancer intervention. International Journal of Cancer, 62(3), 345-350. https://doi.org/10.1002/ijc.2910620319

Luong, V. D., & Le, N. H. N. (2016). Camellia ninhii – A new yellow Camellia species from Vietnam. International Camellia Journal, 48, 117.

Mondal, T. K. (2011). Camellia. In C. Kole (Ed.), Wild crop relatives: Genomic and breeding resources (pp. 15-39). Springer. https://beckassets.blob.core.windows.

net/product/readingsample/8665857/9783642212000_excerpt_001.pdf

Phan, T. P. T., Pham, L. N. A., & Vu, H. S. (2021). Effect of extraction solvents on quality of Vietnamese tea (Camellia sinensis O. Kuntze) seed oil. Vietnam Journal of Science and Technology, 59(2), 137-148. https://doi.org/10.15625/2525-2518/59/2/14860

Prince, L. M., & Parks, C. R. (2000). Estimation on relationships of Theoideae (Theaceae) inferred from DNA data. International Camellia Journal, 32, 79-84.

Wang, Y., Sun, D., Chen, H., Qian, L., & Xu, P. (2011). Fatty acid composition and antioxidant activity of tea (Camellia sinensis L.) seed oil extracted by optimized supercritical carbon dioxide. International Journal of Molecular Sciences, 12(11), 7708-7719. https://doi.org/10.3390/ijms12117708

Yu, X., Li, Q., Du, S. K., Zhang, R., & Xu, C. (2013). A novel process for the aqueous extraction of oil from Camellia oleifera seeds and its antioxidant activity. Grasas y Aceites, 64(4), 407-414.

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Published

09-03-2022

Volume and Issues

Section

Natural Sciences and Technology

How to Cite

Hoang, T. T., Le, H. E., & Nguyen, T. L. (2022). CAMELLIA THUANANA (CAMELLIA SECT. CHRYSANTHA) – A NEW SPECIES FROM THE CENTRAL HIGHLANDS, VIETNAM. Dalat University Journal of Science, 12(3), 18-26. https://doi.org/10.37569/DalatUniversity.12.3.931(2022)