Abstract
An examination of herbarium specimens and type material shows Reevesia orbicularifolia is conspecific with R. orbicularis, which is distributed in Vietnam. Therefore, R. orbicularifolia is reduced as a synonymy of R. orbicularis. A new species R. napoensis from northwestern Guangxi, China is described and illustrated. The new species is similar to R. rotundifolia and R. orbicularis but differs in having 7-veined cordate leaf blades, three bracts, 4-lobed sepals, and glabrous petals.
References
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Tang, Y., Michael, G.G., Laurence, J.D. & Spongberg, S.A. (2007) Reevesia Lindl. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (eds.) Flora of China 9. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis, pp. 302–330.
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Thorne, R.E. (1992) Classification and geography of the flowering plants. Botanical Review 58: 225–348. https://doi.org/10.1007/BF02858611
Von Balthazar, M., Schonenberger, J., Alverson, W.S., Janka, H., Bayer, C. & Baum, D.A. (2006) Structure and evolution of the androecium in the Malvatheca clade (Malvaceae s.l.) and implications for Malvaceae and Malvales. Plant Systematics Evolution 260: 171–197. https://doi.org/10.1007/s00606-006-0442-9
Wu, Z.Y. (1979) Reevesia Lindl. In: Flora of Yunnan 2. Science Press, Beijing. pp. 153–158.
Chun, W.Y. (1934) Flora of Kwangtung. Sunyatsenia 1: 269–230.
Clemens, B., Michael, F.F., Anette, Y.D.B., Vincent, S., Cynthiam, M.M., Klaus, K., William, S.A.& Mark, W.C. (1999) Support for an expanded family concept of Malvaceae within a recircumscribed order Malvales: a combined analysis of plastid atpB and rbcL DNA sequences. Botanical Journal of Linnean Society 129: 267–303. https://doi.org/10.1111/j.1095-8339.1999.tb00505.x
Hsue, H.H. (1974) Reevesia Lindl. In: Yu, T.T. (Ed.) Flora Reipublicae Popularis Sinicae, vol. 49 (2). Science Press, Beijing, pp. 144–152.
Hsue, H.H. (1977) Review of the Sterculiaceous Plants in China. Acta Phytotaxonomica Sinica 15 (1): 81–82.
IUCN (2022) Guidelines for Using the IUCN Red List Categories and Criteria, Version 15. Available from: https://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 9 February 2022)
Judd, W.S. & Manchester, S.R. (1997) Circumscription of Malvaceae (Malvales) as Determined by a Preliminary Cladistic Analysis of Morphological, Anatomical, Palynological, and Chemical Characters. Brittonia 49: 384–405. https://doi.org/10.2307/2807839
Lê, T.C. (2003) Reevesia Lindl. In: Cay co Viet Nam: An Illustrated Flora of Vietnam vol 1. Mekong Printing, Montreal. pp. 503–504.
Lindley, J. & Reeves, J.E. (1827) Account of a New Genus of Plants, called Reevesia. Quarterly Journal of Science, Literature and the Arts 2 (2): 109–112.
Masters, M.T. (1874) XXVII. Sterculiaceae. In: Hooker, J.D. (ed.) Flora of British India 1 (2). pp. 353–379.
Nyffeler, R., Bayer, C., Alverson, W.S., Yen, A., Whitlock, B., Chase, M.W. & Baum, D.A. (2005) Phylogenetic analysis of the Malvadendrina clade (Malvaceae s.l.) based on plastid DNA sequences. Organisms Diversity & Evolution 5: 109–123. https://doi.org/10.1016/j.ode.2004.08.001
Phengklai, C. (2001) Reevesia Lindl. In: Santisuk, T. & Larsen, K. (eds.) Flora of Thailand 7 (3). The Forest Herbarium, Royal Forest Department, Bangkok, pp. 618–621.
Tang, Y., Michael, G.G., Laurence, J.D. & Spongberg, S.A. (2007) Reevesia Lindl. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (eds.) Flora of China 9. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis, pp. 302–330.
Tardieu, M.L. (1942) Sterculiaceae Nouvelles D<sup>’</sup>Indochine. Notulae systematicae 10: 237.
Tardieu, M.L. (1945) Reevesia Lindl. In: Lecomte, P.H. (Eds.) Flore Générale de l’Indo–Chine. Masson, Paris. 1027 pp.
Takhtajan, A.L. (1997) Diversity and Classification of Flowering Plants. Columbia University Press, New York, 643 pp.
Thorne, R.E. (1992) Classification and geography of the flowering plants. Botanical Review 58: 225–348. https://doi.org/10.1007/BF02858611
Von Balthazar, M., Schonenberger, J., Alverson, W.S., Janka, H., Bayer, C. & Baum, D.A. (2006) Structure and evolution of the androecium in the Malvatheca clade (Malvaceae s.l.) and implications for Malvaceae and Malvales. Plant Systematics Evolution 260: 171–197. https://doi.org/10.1007/s00606-006-0442-9
Wu, Z.Y. (1979) Reevesia Lindl. In: Flora of Yunnan 2. Science Press, Beijing. pp. 153–158.