Abstract
A new fern species, Athyrium aberrans (Athyriaceae), currently only known from southeastern Xizang, China is described. Morphologically, A. aberrans is superficially similar to A. falcatum in the habit and pinna shape, but the new species can easily be distinguished from the latter by having purplish petioles and rachises, a bulbil on the rachis below the lamina apex, and finely toothed pinna margins. A phylogenetic analysis based on five plastid markers demonstrates that A. aberrans is most closely related to but obviously distinct from A. epirachis.
References
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Wu, Z.-Y. (1983) Flora Xizangica Vol.1. Science Press, Beijing.
Zhang, L.-B., Comes, H.P. & Kadereit, J.W. (2001) Phylogeny and quaternary history of the European montane/alpine endemic Soldanella (Primulaceae) based on ITS and AFLP variation. American Journal of Botany 88: 2331–2345. https://doi.org/10.2307/3558393
Zhang, X.-C. (1997) Additions to the pteridophyte flora of Xizang. Indian Fern Journal 14: 99–102.
Zhang, X.-C., Shen, Z.-H. & Dong, S.-Y. (2004) Additions to the pteridophyte flora of Xizang (II). Bulletin of Botanical Research 24: 274–277.
Zhang, X.-C., Wang, L. & Qi, X.-P. (2008) Additions to the pteridophyte flora of Xizang (IV). Newsletter of Himalayan Botany 41: 15–22.
Beddome, R.H. (1863) The ferns of southern India : being descriptions and plates of the Madras presidency. Adelphi Press, Madras. https://doi.org/10.5962/bhl.title.119559
Beddome, R.H. (1892) Handbook to the ferns of British India, Ceylon and the Malay peninsula: with supplement. Thacker, Spink, and Co., Calcutta. https://doi.org/10.5962/bhl.title.49551
Ching, R.-C. & Ling, Y.-X. (1984a) A supplement to the Flora of Xizang (Tibet) (1). Acta Pytotaxonomica Snica 22: 193–204.
Ching, R.-C. & Ling, Y.-X. (1984b) A supplement to the Flora of Xizang (Tibet) (2). Acta Pytotaxonomica Snica 22: 397–408.
Christ, H. (1905) Les collections de Fougères de la Chine au Muséum ?histoire naturelle de Paris. Bulletin de la Société Botanique de France 1: 1–69. https://doi.org/10.1080/00378941.1905.10829209
Christensen, C. (1934) Index Filicum–Supplementum tertium (1917–1933). H. Hagerup, Copenhagen.
Fan, X.-P., Zhang, L., Zhang, L.-B. & Zhang, L. (2021) Selliguea wusugongii (Polypodiaceae), a new fern species from southeastern Xizang, China based on morphological and molecular evidence. Phytotaxa 480: 57–68. https://doi.org/10.11646/phytotaxa.480.1.5
Hall, T.A. (1999) BioEdit: a user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucleic acids symposium series 41: 95–98.
Huelsenbeck, J.P. & Ronquist, F. (2001) MRBAYES: Bayesian inference of phylogenetic trees. Bioinformatics 17: 754–755. https://doi.org/10.1093/bioinformatics/17.8.754
Johnson, M., Zaretskaya, I., Raytselis, Y., Merezhuk, Y., McGinnis, S. & Madden, T.L. (2008) NCBI BLAST: a better web interface. Nucleic Acids Research 36: W5–W9. https://doi.org/10.1093/nar/gkn201
Liu, Y.-C., Chiou, W.-L. & Kato, M. (2011) Molecular phylogeny and taxonomy of the fern genus Anisocampium (Athyriaceae). Taxon 60: 824–830. https://doi.org/10.1002/tax.603014
Miller, M.A., Pfeiffer, W. & Schwartz, T. (2010) Creating the CIPRES Science Gateway for inference of large phylogenetic trees. In: Proceedings of the Gateway Computing Environments Workshop (GCE), 14 November 2010. New Orleans, LA, pp. 1–8. https://doi.org/10.1109/GCE.2010.5676129
Moore, T. (1857) Index Filicum, a synopsis with characters of the genera, and an enumeration of the species of ferns, with synonyms, references, etc. W. Pamplin, London, 168 pp. https://doi.org/10.5962/bhl.title.55301
Nakai, T. (1930) Notulae ad Plantas Japoniae & Koreae XXXVIII. Botanical Magazine, Tokyo 44: 7–40. https://doi.org/10.15281/jplantres1887.44.7
Newman, E. (1851) Proposed addition of three new species and three new genera to our list of British ferns. Phytologist 4: 368–371.
Roth, A.W. (1800) Tentamen florae Germanicae; continens enumerationem plantarum in Germania sponte nascentium (Tomus III). In Bibliopolio I.G. Mlleriano, Lipsiae, 578 pp.
Stamatakis, A., Hoover, P. & Rougemont, J. (2008) A rapid bootstrap algorithm for the RAxML Web servers. Systematic Biology 57: 758–771. https://doi.org/10.1080/10635150802429642
Sun, H. & Zhou, Z.-K. (1996) The characters and origin of the flora from the big bend gorge of Yalutsangpu (Brahmabutra) river, eastern Himalyas. Acta Botanica Yunnanica 18: 185–204.
Swartz, O. (1801) Genera et species filicum ordine systematico redactarum. Journal für die Botanik. H. A. Schrader, Göttingen 1800 (2): 1–120.
Wei, H.-J., Zhou, X.-L., Jin, D.-M. & Yan, Y.-H. (2018a) New records of pteridophytes in Xizang. Guihaia 38: 397–407.
Wei, R., Ebihara, A., Zhu, Y.-M., Zhao, C.-F., Hennequin, S. & Zhang, X.-C. (2018b) A total-evidence phylogeny of the lady fern genus Athyrium Roth (Athyriaceae) with a new infrageneric classification. Molecular Phylogenetics and Evolution 119: 25–36. https://doi.org/10.1016/j.ympev.2017.10.019
Wu, Z.-Y. (1983) Flora Xizangica Vol.1. Science Press, Beijing.
Zhang, L.-B., Comes, H.P. & Kadereit, J.W. (2001) Phylogeny and quaternary history of the European montane/alpine endemic Soldanella (Primulaceae) based on ITS and AFLP variation. American Journal of Botany 88: 2331–2345. https://doi.org/10.2307/3558393
Zhang, X.-C. (1997) Additions to the pteridophyte flora of Xizang. Indian Fern Journal 14: 99–102.
Zhang, X.-C., Shen, Z.-H. & Dong, S.-Y. (2004) Additions to the pteridophyte flora of Xizang (II). Bulletin of Botanical Research 24: 274–277.
Zhang, X.-C., Wang, L. & Qi, X.-P. (2008) Additions to the pteridophyte flora of Xizang (IV). Newsletter of Himalayan Botany 41: 15–22.