Camellia wumingensis (Theaceae), a neglected species from Guangxi, China

Hai-Ling CHEN ； Su-Juan WEI ； Shao-Qing TANG ； Yan LIU

《TAIWANIA》 68卷4期 (2023/12) Pp. 472-479

https://doi.org/10.6165/tai.2023.68.472

摘要

Camellia wumingensis, a neglected species known only from limestone areas of Guangxi, China, is formally described and illustrated here. It is morphologically similar to C. flavida var. patens in having current-year branchlets purplish red, petiole adaxially grooved, flowers axillary or terminal, ovary glabrous, capsule oblate, and seeds brown, but is readily distinguished by the leaf texture and size, number of secondary veins, flower size, flower bud shape and size, number of petals, degree of fusion of the outer filaments, and pericarp thickness. Other related species C. flavida and C. pinguoensis var. terminalis are also compared with C. wumingensis in the paper, and the differences between them are obvious. In addition to a diagnosis and detailed description, information on the geographical distribution, images of morphological characters and pollen grains, and a provisional conservation status assessment are provided for this species.

關鍵字

Camellia flavida ； Camellia pingguoensis var. terminalis ； limestone areas ； morphology ； palynology ； taxonomy

參考文獻

Bachman, S., Moat, J., Hill, A.-W., de la Torre, J., Scott, B. 2011 Supporting Red List threat assessments with GeoCAT; geospatial conservation assessment tool. ZooKeys 150: 117–126.

Hu, R.-C., Wei, S.-J., Liufu, Y.-Q., Nong, Y.-K., Fang, W. 2019 Camellia debaoensis (Theaceae), a new species of yellow camellia from limestone karsts in southwestern China. PhytoKeys 135(3): 49–58.

Le, N.-H.-N., Luong, V.-D., Nguyen, V.-C., Pham, T.-T.-D., Luu, T.-T., Pham, V.-T. 2020 An updated checklist of theaceae and a new species of polyspora from Vietnam. Taiwania 65(2): 216–227.

Liu, Z.-W., Fang, W., Liu, E.-D., Zhao, M., He, Y.-F., Yang, S.-Q. 2019 Camellia mingii, a new species of yellow camellias from Southeast Yunnan, China. Phytotaxa 393(1): 47–56.

Liu, Z.-W, Chai, S.-F., Wu, F.-Y., Ye, P.-M., Jiang, C.-J., Zhang, Z.-R., Yu, X.-Q., Ma, J.-L., Yang, S.-X. 2020 Camellia rostrata, a new species of yellow camellias from Southwest China. Phytotaxa 459(1): 61–68.