Pteridryaceae： A new fern family of Polypodiineae （Polypodiales） including taxonomic treatments  

作　　者：Xin-Mao Zhou Liang Zhang Ngan Thi Lu Xin-Fen Gao Li-Bing Zhang 

机构地区：[1]CAS Key Laboratory of Mountain Ecological Restoration and Bioresource utilization, Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. Box 416, Chengdu 610041, China [2]Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China [3]University of Chinese Academy of Sciences, Beijing 100049, China [4]Department of Biology, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 18th Hoang Quoc Viet Road, Ha Noi, Vietnam [5]Missouri Botanical Garden, P.O. Box 299, St. Louis, MO 63166-0299, USA

出　　处：《Journal of Systematics and Evolution》2018年第2期148-173,共26页植物分类学报（英文版）

基　　金：This research was partially supported by Chengdu Institute of Biology, Chinese Academy of Sciences, the National Geo- graphic Society of the USA, and the National Natural Science Foundation of China to L.-B.Z. （#31628002） and to L.Z. （#31400196）, the Glory Light International Fellowship for Chinese Botanists at Missouri Botanical Garden to X.-M.Z., the CAS-TWAS President＇s Fellowship for International PhD Students to N.T.L., and the CAS/SAFEA International Partner- ship Program for Creative Research Teams. Ralf Knapp shared one sample. De-Kui Chen helped with the laboratory work and Carl J. Rothfels provided locality information for one species. Daniele Cicuzza, Shi-Yong Dong, Andrew S. Doran, Zhao-Rong He, Peter Hovenkamp, Layne Huiet, Serena Lee, Hong-Mei Liu, Patrik Mraz, Viera Mrazova, and Alan R. Smith helped provide images of some specimens. We thank Nicholas J. Turland for Greek consultation, and Harald Schneider for helpful comments.

摘　　要：We undertook phylogenetic analyses to resolve the relationships of Pteridrys and related taxa based on six plastid markers （atpA, atpB, matK＆ rps16-matK, rbcL, rps4 ＆ rps4-trnS, and trnL ＆ trnL-F） and nuclear pgiC. We included 195 accessions representing approximately 147 species in .38 genera, and seven of the nine families in Polypodiineae （eupolypods I）. Tectariaceae s.l. （i.e., Arthropteris, Draconopteris, Hypoderris, Malaifilix, Pteridrys, Tectaria, and Triplophyllum in addition to Polydictyum） is recovered as monophyletic （97% maximum likelihood bootstrap value）, but with low （〈50%） maximum parsimony jackknife value. The family Tectariaceae s.I. is therefore the only family in ferns without a corresponding non-parametric-based strong support in spite of our data totaling 9616 aligned base pairs. Tectariaceae s.I. can not be unambiguously recognized by any of the 13 morphological characters analyzed. However, if the clade composed of Draconopteris, A4alaifilix, Polydictyum, and Pteridrys （DM PP） is recognized as a distinct family, at least four morphological characters enable the distinction of the DMPP clade from its sister clade. Considering the uncertainty in the monophyly, the diagnosability, and the deep divergence, we propose to establish a new family, Pteridryaceae, to accommodate the DM PP clade. Species of Pteridryaceae share mostly the following characteristics： erect to suberect rhizomes, reduced basal pinnae, anastomosing or free venation, absence of catenate hairs at the leaf surface, and perine ornamentation lacking spines or spinules. Identification keys are provided for the four genera and 31 species of the DMPP clade （or Pteridryaceae）. Reflecting the presented results, the recognition of Arthropteridaceae is the preferred taxonomic status of the Arthropteris clade.We undertook phylogenetic analyses to resolve the relationships of Pteridrys and related taxa based on six plastid markers （atpA, atpB, matK＆ rps16-matK, rbcL, rps4 ＆ rps4-trnS, and trnL ＆ trnL-F） and nuclear pgiC. We included 195 accessions representing approximately 147 species in .38 genera, and seven of the nine families in Polypodiineae （eupolypods I）. Tectariaceae s.l. （i.e., Arthropteris, Draconopteris, Hypoderris, Malaifilix, Pteridrys, Tectaria, and Triplophyllum in addition to Polydictyum） is recovered as monophyletic （97% maximum likelihood bootstrap value）, but with low （〈50%） maximum parsimony jackknife value. The family Tectariaceae s.I. is therefore the only family in ferns without a corresponding non-parametric-based strong support in spite of our data totaling 9616 aligned base pairs. Tectariaceae s.I. can not be unambiguously recognized by any of the 13 morphological characters analyzed. However, if the clade composed of Draconopteris, A4alaifilix, Polydictyum, and Pteridrys （DM PP） is recognized as a distinct family, at least four morphological characters enable the distinction of the DMPP clade from its sister clade. Considering the uncertainty in the monophyly, the diagnosability, and the deep divergence, we propose to establish a new family, Pteridryaceae, to accommodate the DM PP clade. Species of Pteridryaceae share mostly the following characteristics： erect to suberect rhizomes, reduced basal pinnae, anastomosing or free venation, absence of catenate hairs at the leaf surface, and perine ornamentation lacking spines or spinules. Identification keys are provided for the four genera and 31 species of the DMPP clade （or Pteridryaceae）. Reflecting the presented results, the recognition of Arthropteridaceae is the preferred taxonomic status of the Arthropteris clade.

关 键 词：Arthropteris Eupolypods I fern phylogeny POLYPODIACEAE Pteridryaceae Pteridrys Tectariaceae. 

分 类 号：Q943[生物学—植物学] TS976[轻工技术与工程]