A checklist of wild vascular plants in Guangxi, China

doi:10.17520/biods.2023078

Abstract

Abstract:

Aims: To comprehensively understand the current status of wild vascular plant resources in Guangxi and provide basic information for the corresponding biodiversity conservation practice, it is necessary to revise and update the checklist of vascular plants in Guangxi.

Method: Based on the authors’ forthcoming book “Catalogue and Red List of Plant Species in Guangxi”, we updated the checklist of wild vascular plants in Guangxi.

Results: The results showed 262 families, 1,793 genera, 8,221 species, 57 subspecies, 460 varieties, and 1 form of wild vascular plant in Guangxi. Among them there were 36 families, 118 genera, 699 species, 3 subspecies, 13 varieties, and 1 form of lycophytes and pteridophytes; and 7 families, 21 genera, 60 species, and 5 forms of gymnosperm; 219 families, 1,654 genera, 7,462 species, 54 subspecies, and 442 forms of angiosperms. In addition, 129 families, 385 genera, 1,209 species, 2 subspecies, and 49 varieties of karst obligate plants were counted in this paper, accounting for 14.42% of the total taxa in Guangxi. The top ten largest families of karst obligate plants are Gesneriaceae, Asparagaceae, Orchidaceae, Rubiaceae, Urticaceae, Begoniaceae, Acanthaceae, Primulaceae, Lauraceae, and Euphorbiaceae. In contrast, the top ten largest genera are Primulina, Begonia, Aspidistra, Elatostema, Spiradiclis, Polystichum, Petrocodon, Lysimachia, Strobilanthes, and Paraboea, respectively. 4 genera (Metapilea, Heteroplexis, Allostigma, and Gyrogyne) and 901 species, 3 subspecies, and 61 varieties of vascular plants are endemic to Guangxi, accounting for 11.04% of the total species in Guangxi. A total of 349 taxa of vascular plants in Guangxi are on the List of National Key Protected Wild Plants (2021). It accounted for 33.46% of the species of wild vascular plants under national key protected wild plants in China.

Conclusions: The dynamic update of this checklist is the periodic summary and induction of wild vascular plants in Guangxi. There are still 253 suspected species to be confirmed. These species provide a clear direction for further improving the catalog of wild vascular plants in Guangxi. Therefore, this paper calls on related botanical researchers to conduct more in-depth investigations and research on wild vascular plant diversity in Guangxi.

Key words: Guangxi, vascular plant, biodiversity, checklist, new taxon, new record

Yigang Wei, Fang Wen, Zibing Xin, Longfei Fu. A checklist of wild vascular plants in Guangxi, China[J]. Biodiv Sci, 2023, 31(6): 23078.

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URL: https://www.biodiversity-science.net/EN/10.17520/biods.2023078

https://www.biodiversity-science.net/EN/Y2023/V31/I6/23078

Figures/Tables 3

References 35

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植物类别 Plant category	特有种数量 No. of endemic species	广西野生维管植物物种总数 No. of wild vascular plants in Guangxi (%)
石松类和蕨类植物 Lycopods and pteridophytes	16	716 (0.18)
裸子植物 Gymnosperms	3	65 (0.03)
被子植物 Angiosperms	946	7,958 (10.83)
总计 Total	965	8,739 (11.04)

植物类别 Plant category	特有种数量 No. of endemic species	广西野生维管植物物种总数 No. of wild vascular plants in Guangxi (%)
石松类和蕨类植物 Lycopods and pteridophytes	16	716 (0.18)
裸子植物 Gymnosperms	3	65 (0.03)
被子植物 Angiosperms	946	7,958 (10.83)
总计 Total	965	8,739 (11.04)

植物类别 Plant category	国家重点保护野生植物 National key protected wild plants		占广西野生维管植物种总数的百分比 Percentage of wild vascular plants in Guangxi (%)
植物类别 Plant category	I	II
石松类和蕨类植物 Lycopods and pteridophytes	1	41	0.48
裸子植物 Gymnosperms	16	19	0.40
被子植物 Angiosperms	25	247	3.11
总计 Total	42	307	3.99

植物类别 Plant category	国家重点保护野生植物 National key protected wild plants		占广西野生维管植物种总数的百分比 Percentage of wild vascular plants in Guangxi (%)
植物类别 Plant category	I	II
石松类和蕨类植物 Lycopods and pteridophytes	1	41	0.48
裸子植物 Gymnosperms	16	19	0.40
被子植物 Angiosperms	25	247	3.11
总计 Total	42	307	3.99

植物类别 Plant category	科 Family	属 Genus	种(含种下等级) Species (including infraspecies)	占广西野生维管植物种总数的百分比 Percentage of wild vascular plants in Guangxi (%)
石松类和蕨类植物 Lycopods and pteridophytes	10	19	68	0.78
裸子植物 Gymnosperms	4	7	12	0.14
被子植物 Angiosperms	115	359	1,180	13.50
总计 Total	129	385	1,260	14.42