Abstract
Rubustingzhouensis C.An & G.C.Lin, a newly-defined species within the family Rosaceae from Fujian Province, China, is formally described and illustrated here. R.tingzhouensis is morphologically similar to R.swinhoei, but can be distinguished by several key characteristics, such as long, reddish-purple stipitate glands, soft bristles, light yellow short trichomes (vs. shortly grey tomentose at the early stage, glabrescent) and scattered epidermal prickles (vs. few to many curved prickles). Furthermore, the stipules are pinnately deeply laciniate, measuring 1-1.5 cm (vs. ovate-oblong to ovate-lanceolate, 0.5-0.8 cm). Phylogenetic analyses, based on partial sequences and the complete plastome data, provide robust support for a close relationship between R.tingzhouensis and R.swinhoei, while also highlighting distinct genetic differentiation between these two species. The chloroplast genome of R.tingzhouensis is 156,311 bp in length and comprises 132 unique genes, including 86 protein-coding genes, 37 transfer RNAs, eight ribosomal RNAs and one pseudogene.