Abstract
Nearly 103 species of Sphaeropteris are distributed in tropical area, of which three species are indigenous to China. Our previous molecular study of the genus in China showed that there is an undescribed species from Guangxi province which could be originated from natural hybridization. In this study, we carried out further morphological studies on the species of Sphaeropteris in China, and assessed the status of the new species. Here, we described and illustrated the new species as S. guangxiensis Y.F. Gu & Y.H. Yan.
References
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Tagawa, M. (1966) Polypodiaceae. In: Hara, H. (Ed.) Flora of Eastern Himalaya. University of Tokyo, Tokyo, 742 pp.
Tryon, R.M. (1970) The classification of the Cyatheaceae. Contributions from the Gray Herbarium of Harvard University 200: 3–53.
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Zhang, J.-L., Bai, S.-M. & Wang, R.-X. (2017) Observation of Guangxi Cyatheaceae spores under scanning electron microscope and its systematic significance. Popular Science & Technology 19: 75–77.
Zhang, X.-C. & Nishida, H. (2013) Cyatheaceae. In: Wu, Z.Y. & Raven, P.H. (Eds.) Flora of China, Vols. 2–3. Science Press and Missouri Botanical Garden Press, Beijing and Saint Louis, pp. 134–138.
Bernhardi, D.I.I. (1801) Tentamen alterum filices in genera redigendi. Journal für die Botanik (Schrader) 1800 : 121–136.
Blume, C.L. (1828) Enumeratio plantarum Javae et insularum adjacentium minus cognitarum vel novarum ex herbariis Reinwardtii, Kuhlii, Hasseltii et Blumii. Fasc. 2.. Lugduni Batavorum, Leiden, 274 pp. https://doi.org/10.5962/bhl.title.44901
Brown, R. (1810) Prodromus Florae Novae Hollandiae et Insulae Van-Diemen, etc. Leornard Schrag, Nuremberg, 590 pp.
Cao, J.-G., Wang, Q.-X. & Yu, J. (2007) Spore morphology of ferns from China VII. Cyatheaceae. Acta Botanica Yunnanica 29: 7–12. https://doi.org/10.1016/S1872-2075(07)60055-7
Ching, R.-C. & Wang, C.-H. (1959) Materials for the Pteridophytic Flora of Hainan. Acta Phytotaxonomica Sinica 8: 125–171.
Ching, R.-C. & Wang, C.-H. (1964) Additional materials for the Pteridophytic Flora of Hainan. Acta Phytotaxonomica Sinica 9: 345–373.
Conant, D.S., Raubeson, L.A., Attwood, D.K. & Stein, D.B. (1995) The relationships of Papuasian Cyatheaceae to New World tree ferns. American Fern Journal 85: 328–340. https://doi.org/10.2307/1547813
Copeland, E.B. (1929) The oriental genera of Polypodiaceae. University of California Publications in Botany 16: 45–128.
Holttum, R.E. (1957) The scales of Cyatheaceae. (with special reference to the genus Schizocaena J. Sm.). Kew Bulletin 12 : 41–45. https://doi.org/10.2307/4109099
Hooker, W.J. (1844) Species filicum: being descriptions of the known ferns Polypodieae-acrosticheae, William Pamplin, London, 245 pp.
Korall, P., Conant, D.S., Metzgar, J.S., Schneider, H. & Pryer, K.M. (2007) A molecular phylogeny of scaly tree ferns (Cyatheaceae). American Journal of Botany 94 : 873–886. https://doi.org/10.3732/ajb.94.5.873
Korall, P. & Pryer, K.M. (2014) Global biogeography of scaly tree ferns (Cyatheaceae): evidence for Gondwanan vicariance and limited transoceanic dispersal. Journal of Biogeography 41 : 402–413. https://doi.org/10.1111/jbi.12222
Kramer, K.U. & Green, P.S. (1990) Pteridophytes and Gymnosperms, In: Kubitzki, K. & Green, P.S. (Eds.) The families and genera of vascular plants. Vol. 1. Springer-Verlag, Berlin, pp. 69–74.
Linnaeus, C. (1753) Species plantarum. Vol. 2. Imprensis Laurentii Salvii, Homiae, 1200 pp.
Linnaeus, C. (1763) Species Plantarum, Editio Secunda 2. Imprensis Direct. Laurentii Salvii, Holmiae, 1864 pp.
McClure, F.A. (1936) The Chinese species of Schizostachyum. Lingnan Science Journal 15: 639–643.
Morigengaowa, Shang, H., Liu, B.-D., Kang, M. & Yan, Y.-H. (2019) One or more species? GBS sequencing and morphological traits evidence reveal species diversification of Sphaeropteris brunoniana in China. Biodiversity Science 29: 1196–1204. https://doi.org/10.17520/biods.2019146
Müller, A.J. (1865) Linnaea; Ein Journal für die Botanik in ihrem ganzen Umfange. Commission bei C. A. Schwetschke and Soha, Braunschweig, 752 pp.
Nong, D.-X., Jiang, R.-H., Wu, L. & Xu, W.-B. (2012) Sphaeropteris, a newly recorded genus of tree ferns from Guangxi. Guihaia 32: 12–14. https://doi.org/10.3969/j.issn.1000-3142.2012.01.004
PPG I (2016) A community-derived classification for extant lycophytes and ferns. Journal of Systematics & Evolution 54: 563–603. https://doi.org/10.1111/jse.12229
Smith, J.E. (1793) Mémoires de l’Académie Royale des Sciences. Vol. 5. Imprimeur Libraire de L’Académie, Turin, 422 pp.
Smith, A.R., Pryer, K.M., Schuettpelz, E.K.P., Schneider, H. & Wolf, P.G. (2006) A classification for extant ferns. Taxon 55: 705–731. https://doi.org/10.2307/25065646
Sprengel, C.P.J. (1826) Systema Vegetabilium, edition decimal sexta. Vol. 3. Subntibus Librariae Dieterichianae, Gottingae, 936 pp.
Tagawa, M. (1966) Polypodiaceae. In: Hara, H. (Ed.) Flora of Eastern Himalaya. University of Tokyo, Tokyo, 742 pp.
Tryon, R.M. (1970) The classification of the Cyatheaceae. Contributions from the Gray Herbarium of Harvard University 200: 3–53.
Yan, Y.-H., Zhang, X.-C. & Ma, K.-P. (2013) Pteridophytes in China: diversity and distribution. Science Press, Beijing, China, pp. 146–147.
Zhang, J.-L., Bai, S.-M. & Wang, R.-X. (2017) Observation of Guangxi Cyatheaceae spores under scanning electron microscope and its systematic significance. Popular Science & Technology 19: 75–77.
Zhang, X.-C. & Nishida, H. (2013) Cyatheaceae. In: Wu, Z.Y. & Raven, P.H. (Eds.) Flora of China, Vols. 2–3. Science Press and Missouri Botanical Garden Press, Beijing and Saint Louis, pp. 134–138.