Three genera (Zosima Hoffm., Lithosciadium Turcz., and Lomatocarpa Pimenov) were shown for the first time for the Chinese　flora on the basis of collections kept in rümqi ［Institute of Biology, Pedology and Desert Investigations (XJBI), CAS］. In the same herbarium, some additional floristic novelties were found: two genera (Pleurospermum s.str. and Kadenia) and six species new for Xinjiang. A new species, Dimorphosciadium shenii Pimenov et Kljujkov has been described, being a Xinjiang endemic. Some corrections in taxonomy and nomenclature for local species of Ferula, Seseli, Aphanopleura, Aegopodium, and Sium have been proposed. In total, 126 species and 53 genera of the Umbelliferae are registered for Xinjiang.