J Syst Evol ›› 2006, Vol. 44 ›› Issue (4): 443-446.DOI: 10.1360/aps050128

• Research Articles • Previous Articles     Next Articles

Saxifraga banmaensis and S. dingqingensis, two new species of the Saxifragaceae from China

1PAN Jin-Tang*, 1MEI Li-Juan, 1CHEN Shi-Long**, 1 2ZHANG De-Jun   

  1. 1(Laboratory of Qinghai-Tibet Biological Evolution and Adaptation, Northwest Plateau Institute of Biology, the Chinese Academy of Sciences, Xining 810001, China)

    2(Graduate School of the Chinese Academy of Sciences, Beijing 100039, China)
  • Received:2005-08-29 Published:2006-07-18

Abstract: Saxifraga banmaensis J. T. Pan and S. dingqingensis J. T. Pan, two species of the genus Saxifraga (Saxifragaceae) from China, are described and illustrated. Of these, S. banmaensis J. T. Pan is known only from Banma County, Qinghai Province, and related to S. umbellulata Hook. f. & Thoms. (including varieties), but differs by having sepals cartilaginous-mucronulate at apex, and petals linear, not pandurate-oblong to pandurate, base not unguiculate. S. dingqingensis J. T. Pan occurs in Dingqing County, Xizang, and is similar to S. llonakhensis W. W. Smith, but differs by having sepals 3-veined, veins confluent at apex, petals 8-callose, 4-5-veined, base truncate or subauriculate. Both species are endemic to China, and belong to subsect. Rosulares Gornall.

Key words: Saxifraga, Saxifraga banmaensis J. T. Pan, Saxifraga dingqingensis J. T. Pan, Saxifragaceae, new species, Qinghai, Xizang, China