Further contributions to the study of the Qubu Flora· from southern Xizang (Tibet)

Abstract

The taxonomy of Glossopleris species occurring in the Qubu Formation is reviewed; G. xizangensis is proposed. Samaropsis xizangensis is proposed for seeds found allached to G. xizangensis. An affiliation with the Glossopteris Flora of the Mamal Formation. Kashmir appears valid although the number of distinctive species in common is reduced to Glossopteris dongriensis. Aspects of sporophyte taxa are reviewed in the light of doubts concerning affiliations proposed previously. Additional specimens are needed before problems can be resolved concerning species of Sphenophyllum or Trizygia. Austroannularia, Cladophlebis and Pecopteris. Scale leaf remains have not been named.