2025/05/29 by Dongwei Zhao, Guiliang Zhang, Shi‐Xiong Yang · 1 voice
Biochemistry, Genetics and Molecular Biology · Pharmacology, Toxicology and Pharmaceutics · Agricultural and Biological Sciences · #Plant and Fungal Species Descriptions #Alkaloids: synthesis and pharmacology #Phytochemistry and Biological Activities
paper · pdf · doi:10.3897/phytokeys.256.149481
openalex publication_date 2025/05/29 · openalex created_date 2025/05/30 · openalex updated_date 2026/07/02
Camellia harbors unique diversity along Sino-Vietnamese border. Some species of them are under threat due to human activity. Camellia hekouensis , a native of Hekou, Yunnan, China, was once considered extinct as the previously known “last living tree” died in 2024. Fortunately, 11 in-situ and 32 ex-situ trees have been protected and propagated by the staff of Hekou Administration Branch of Dawei Mountain National Nature Reserve in Yunnan with their great unpublicized efforts. Molecular phylogenetic analysis suggests that C. hekouensis is nested in the main clade CI of Camellia and forms a clade with C. corallina , C. gracilipes and C. pubicosta , which are generally distributed in Vietnam. Morphological characters of the capsule and seed of C. hekouensis are supplementally described. The leaves of C. hekouensis contain 1.18 mg/g theobromine, which disagrees with the previous chemotaxonomic claim. Though the economic and ecological values are little known for C. hekouensis , the species should be conserved and propagated effectively and promptly to prevent extinction.