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Begonia ufoides (sect. Coelocentrum, Begoniaceae), a new species from limestone areas in central Guangxi, China



A peltate-leaved species of Begonia was recently collected from a limestone hill in central Guangxi, China. Based on a careful study of literature, herbarium material, and plants both in the wild and in cultivation reveals that it is a new species of Begonia sect. Coelocentrum, which we hereby describe as B. ufoides. In addition to a full taxonomic account, color plates and line drawings are provided to aid in identification. Begonia ufoides may be confused with B. umbraculifolia Y. Wan & B.N. Chang in southwestern Guangxi and B. phuthoensis H.Q. Nguyen in northern Vietnam, both of which are peltate-leaved calciphilous species in sect. Coelocentrum, but the new species  is clearly distinguishable in many morphological characters. A table comparing salient features of the three species is presented.


Begonia, B. ufoides, China, Guangxi, Limestone, New species, Eudicots

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Averyanov, L.V. & Nguyen, H.Q. (2012) Eleven new species of Begonia L. (Begoniaceae) from Laos and Vietnam. Turczaninowia 15 (2):5–32.

Chung, K.F., Leong, W.C., Rubite, R.R., Repin, R., Kiew, R., Liu, Y. & Peng, C.-I. (2014) Phylogenetic analyses of Begonia sect. Coelocentrum and allied limestone species of China shed light on the evolution of Sino-Vietnamese karst flora. Botanical Studies 55: e1.

Hou, M.F., López-Pujol, J., Qin, H.N., Wang, L.S. & Liu, Y. (2010) Distribution pattern and conservation priorities for vascular plants in Southern China: Guangxi Province as a case study. Botanical Studies 51: 377–386.

Li, C., Yang, L.H., Tian, D.K., Chen, Y., Wu, R.J. & Fu, N.F. (2016) Begonia leipingensis (Begoniaceae), a new compound-leaved species with unique petiolule pattern from Guangxi of China. Phytotaxa 244 (1): 45–56.

Lin, C.W., Thomas, D.C., Ardi, W.H. & Peng, C.-I. (2017a) Begonia ignita (sect. Petermannia, Begoniaceae), a new species with orange flowers from Sulawesi, Indonesia. Gardens’ Bulletin Singapore 69 (1): 89–95.

https://doi: 10.3850/S2010098116000081

Lin, C.W., Chung, S.W. & Peng, C.-I. (2017b) Eleven new species of Begonia (Begoniaceae) from Sarawak, Borneo. Taiwania 62 (3): 219–251.

Lin, C.W. & Peng, C.-I. (2017) Three new species of Begonia (Begoniaceae) from Limestone Hills in southwestern Sarawak, Borneo. Taiwania 62 (2): 105–115.

Nguyen, H.Q. (2004) A new species of a peltate-leaved Begonia (Begoniaceae) from Vietnam. Novon 14 (1): 105–107.

Peng, C.-I., Yang, H.A., Kono, Y., Chung, K.F., Huang, Y.S., Wu, W.H. & Liu, Y. (2013) Novelties in Begonia sect. Coelocentrum: B. longgangensis and B. ferox from limestone areas in Guangxi, China. Botanical Studies 54: e44.

Peng, C.-I., Ku, S.M., Yang, H.A., Leong, W.C., Liu, Y, Nguyen, T.H., Kono, Y. & Chung K.F. (2014a) Two new species of Begonia sect. Coelocentrum, B. guixiensis and B. longa, from Sino-Vietnamese limestone karsts. Botanical Studies 55: e52.

Peng, C.-I., Wang, H., Kono, Y. & Yang, H.-A. (2014b) Begonia wui-senioris (sect. Platycentrum, Begoniaceae), a new species from Myanmar. Botanical Studies 55: e13.

Peng, C.-I., Lin, C.W., Yang, H.A., Kono, Y. & Nguyen, H.Q. (2015a) Six new species of Begonia (Begoniaceae) from limestone areas in Northern Vietnam. Botanical Studies 56: e9.

Peng, C.-I., Yang, H.A., Kono, Y., Jung, M.J. & Nguyen,T.H. (2015b) Four new species of Begonia (Begoniaceae) from Vietnam: B. abbreviata, B. calciphila, B. sphenantheroides and B. tamdaoensis. Phytotaxa 222 (2):83–99.

Peng, C.-I., Rubite, R.R. & Lin, C.W. (2017a) Begonia polyclada (sect. Petermannia, Begoniaceae), a gracile new species from Luzon, Philippines. Phytotaxa 296 (1): 93–97.

Peng, C.-I., Rubite, R.R., Lin, C.W., Hughes, M., Kono, Y. & Chung, K.F. (2017b) Three new species of Begonia sect. Baryandra from Panay Island, Philippines. Botanical Studies 58: e28.

Peng,C.-I., Lin, C.W. & Phutthai, T. (2017c) Begonia fulgurata (sect. Diploclinium, Begoniaceae), a new species from northern Thailand. Blumea (in press)

Tanaka, N. & Peng, C.-I. (2016) Begonia togashii (Begoniaceae: Sect. Platycentrum), a New Species from Central Myanmar. Acta Phytotaxonomica Geobotanica 67 (3): 191–197.

Wan, Y. & Chang, B.N. (1987) A new species of the Genus Begonia from Guangxi. Acta Phytotaxonomica Sinica 25 (4): 322–323.


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ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand