Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae) Author Wang, Ai-Hua Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China & Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning 530001, China Author Yu, Xiao-Ling 0000-0002-0446-5417 Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China & yxl 272614 @ 163. com; https: // orcid. org / 0000 - 0002 - 0446 - 5417 Author Ma, Xiao-Dong 0000-0002-6537-7920 Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing 100091, China & civsmg @ 163. com; https: // orcid. org / 0000 - 0002 - 6537 - 7920 Author Yan, Yue-Hong 0000-0003-3911-4868 Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, the National Orchid Conservation Center of China and the Orchid Conservation & Research Center of Shenzhen, Shenzhen 518114, China & yhyan @ sibs. ac. cn; https: // orcid. org / 0000 - 0003 - 3911 - 4868 yhyan@sibs.ac.cn Author Wang, Fa-Guo 0000-0002-9326-8000 Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China & wangfg @ scbg. ac. cn; https: // orcid. org / 0000 - 0002 - 9326 - 8000 wangfg@scbg.ac.cn Author Chen, Hong- Feng 0000-0002-8415-3260 Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China & h. f. chen @ scbg. ac. cn; https: // orcid. org / 0000 - 0002 - 8415 - 3260 h.f.chen@scbg.ac.cn text Phytotaxa 2022 2022-09-12 561 3 243 255 http://dx.doi.org/10.11646/phytotaxa.561.3.2 journal article 10.11646/phytotaxa.561.3.2 1179-3163 7069842
TABLE 1 Chromosome numbers of different populations from different species in series Gravesiana, including their collected localities and voucher specimens.
Scientific namesPopulationsChromosome numbers (2n)Morphological charactersLocalitiesLatitude, longitude
A. juxtapositumGSD64Plants tall>5 cm, pinna often opposite, with white powder on abaxial surface; veins flabellate at base> 8; sori 1 to many, false indusium terminal transversally linear, truncate.Danxia mountain in Renhua County, Guangdong Province, China.25.016667N, 113.733333E
A. juxtapositumHCZ64same as above GSD.Cheng-jiang-kou in Zixing County, Hunan Province, China25.02725271N, 113.1717517E
A. longzhouensisDX60Plants tall> 5 cm, pinna often opposite, without white powder on abaxial surface, veins flabellate at base> 8; sori 1 to many, reniform.Around Ming-shi-tian-yuan in Daxin County, Guangxi Province, China.22.71479461N, 106.90579142E
A. longzhouensisDB60same as above DX.Jing-yang-cun primary school, Daxin County, Guangxi Province, China.22.65344013N, 106.95694744E
A. dentatumHB2Cca. 60plants small <5 cm, pinnae dentate with 2-4 veins, alternative, sori 1, see Fig 12JGan-hong-dong in Daluo Village, Bama County, Guangxi Province, China.24.30998788N, 106.99668612E
A. mariesiiSBSXca. 120plants small <5 cm, pinnae round with 4 or <4 veins, alternative, each pinna has 1 sori, see Fig 12L.The cave near Shui-tian-ba in Ba- mao-xi Township, Sangzhi County, Zhangjiajie City, Hunan Province, China.29.66275615N, 110.04385259E
A. mariesii complexHMMX60similar to A. mariesii but its pinnae nearly oppositeMing-li-tun, Mulun National Nature Reserve, Huanjiang County, Guangxi Province, China.25.10056593N, 107.96536935E
A. gravesiiSJBca. 150Plants tall> 5 cm, pinna alternative, without white powder abaxially, veins flabellate at base> 4, sori 1, reniform.Moist limestones near the Jiashi river in Sangzhi County, Zhangjiajie City, Hunan Province, China.29.47835826N, 109.93279799E
A. gravesiiHMMB128Plants tall> 5 cm, pinna alternative, without white powder abaxially, veins flabellate at base> 4, sori 1, reniform.Ming-li-tun, Mulun National Nature Reserve, Huanjiang County, Guangxi Province, China25.10052896N, 107.96531981E
A. gravesii complexJEB120similar to A. gravesii but pinnae opposite, with white powder abaxially and short stipes.Cliffs near the cave at E-quan Village, Jinxi County, Guangxi Province, China.23.10341593N, 106.38306309E
A. gravesii complexHFBca. 120similar to A. gravesii but pinnae opposite, with white powder abaxially and short stipesYang-zi-dong, Fenshan County, Guangxi Province, China.24.39477005N, 107.06247795E
A. gravesii complexGAS128similar to A. gravesii but pinnae opposite, with white powder abaxially and short stipesThe Guan-ying-dong at Xuantang in Anshun City, Guizhou Province, China.26.11320649N, 105.87850965E
A. gravesii complexJW1B1ca. 150similar to A. gravesii but pinnae alternative, with long stipes, plant much slimmer.Nong-wei-tun in Nongguang Village, Jinxi County, Guangxi Province, China.23.19056141N, 106.5370083E
A. gravesii complexGGL1ca. 180pinnae alternative, without white powder abaxially but pinna much rounder.Lei-da-yan near the Sanjiang farm in Guiyang City, Guizhou Province, China26.70183582N, 106.81966804E
A. gravesii complexHB1B150pinnae alternative, without white powder abaxially but much thinner and rounder.The small cave near Gan-hong- dong in Daluo Village, Bama County, Guangxi Province, China.24.30960055N, 106.99468704E
A. gravesii complexGXM64pinnae alternative, with white powder abaxially and long stipes.Grand canyon in Maling river, Xingyi City, Guizhou Province, China.25.13439608N, 104.95497429E