Sinosenecio jishouensis (Compositae), a new species from north-west Hunan, China

摘要

Sinosenecio jishouensis D. G. Zhang, Y. Liu & Q. E. Yang, a new species from north-west Hunan, China, is described and illustrated. This new species is easily distinguishable from all its congeners by having leafy stems, broadly elliptic-lanceolate and pinnately-veined leaves, and achenes without a pappus. Its somatic chromosomes were counted as In = 48 and 96. A color plate, line drawings, light microscope (LM) photomicrographs of floral microcharacters, and a distribution map are given for the newspecies.