Euphorbia fanjingshanensis (Euphorbiaceae), a new species from section Helioscopia in southwestern and central China

2026/07/16 by Yalin Feng, Lei Shi, Ranto Tiana Ratsiferanarivo +6 · 1 voice
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Plant Diversity and Evolution #Plant Taxonomy and Phylogenetics #Plant and Fungal Species Descriptions

paper · pdf · doi:10.3897/phytokeys.277.187415

openalex publication_date 2026/07/16 · openalex created_date 2026/07/17 · openalex updated_date 2026/07/29

Abstract

Euphorbia fanjingshanensis , a new species from southwestern and central China, is described and illustrated. Morphologically, it is most similar to E. micractina and E. hylonoma in E. subg. Esula sect. Helioscopia , but can be readily distinguished by its lanceolate leaves with acute apices, reddish to crimson peduncles, and tuberculate capsules, and ovoid-globose dark brown seeds (ca. 2.5 × 2 mm). Phylogenetic analyses based on combined nuclear ITS and plastid ndhF sequences further confirm its placement within the clade of E. sect. Helioscopia , and reveal a close relationship with other species of the East Asian Clade.

Citations

• IQ-TREE: A Fast and Effective Stochastic Algorithm for Estimating Maximum-Likelihood Phylogenies
• MrBayes 3.2: Efficient Bayesian Phylogenetic Inference and Model Choice Across a Large Model Space
• MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability
• Interactive Tree Of Life (iTOL) v5: an online tool for phylogenetic tree display and annotation

Discussions

• Euphorbia fanjingshanensis, a #newspecies from southwestern/central China, has been described. It differs from close relatives E. micractina and E. hylonoma by its lanceolate leaves, reddish peduncles [bsky, 1 points, 0 comments]

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