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Issue: Vol. 544 No. 3: 3 May 2022
Type: Article
Published: 2022-05-03
DOI: 10.11646/phytotaxa.544.3.3
Page range: 289-294
Abstract views: 264
PDF downloaded: 2

Sinosenecio jiuzhaigouensis (Asteraceae, Senecioneae), a new species from Sichuan, China

Eastern China Conservation Center for Wild Endangered Plant Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China
State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
Sichuan Academy of Forestry, Chengdu 610084, Sichuan, China
Eastern China Conservation Center for Wild Endangered Plant Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China
Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China
Asteraceae chromosome number morphology taxonomy Eudicots

Abstract

Sinosenecio jiuzhaigouensis (Asteraceae, Senecioneae), a new species from Jiuzhaigou county in northwestern Sichuan province, China, is described and illustrated. This species is similar to S. hederifolius and S. cyclaminifolius in having ovate-cordate leaf blade and solitary capitula, but differs by having swollen (vs. not swollen) rhizomes and smaller capitula (2–3 vs. 4–5 cm in diameter). Two floral micromorphological characters (configuration of filament collars and of anther endothecial cell wall thickenings), achene surface feature, and chromosome number of the new species are reported.

References

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How to Cite

Chen, B., Liu, Y., Luo, J.-X., Wang, Q. & Yang, Q.-E. (2022)

Sinosenecio jiuzhaigouensis (Asteraceae, Senecioneae), a new species from Sichuan, China

. Phytotaxa 544 (3): 289–294. https://doi.org/10.11646/phytotaxa.544.3.3