MEÖOZÜIC rLA.NTW riio.M ( lllXA. 



I. TRIASSIC PLANTS. 



These were brüught back by Prof. Yamada from two places 

 ill Yün-uan, viz. T*ang-t'ang|' and Shui-t'ang-p'u,^^ very near each 

 other and quite near the boundary of 8su-ch*uang. The distance 

 between these two })kiceö may be from 15 to 10 kilom. The 

 following is a rough geological profile constructed according to a 

 sketch-map by Prof. Yamada. 



Boundary bctw. Yuiuian & Ssuchuaiig 

 Kolti Rive}' 



Tangtang 

 «Si 

 Plants PS 



Shuitungpu \ 

 »? 'Sä 



: Plants : 



i'Jiintüupii 



1. SiiiuUtone probubly of Palaeozoic age. 

 '_*. Limestone (Permo-Carboniferous?) 

 .">. Diabase and its tnfts. 



4. Red and green sandstones and siiales, containing fossil jilaiits; and near 

 Shui-tang-pu a coal seam. 



5. Limestone. 



G. Red and yellow sandstones and shales probably bflongini; to a lormation 

 constituting tiie Mesozoic Rasin of ^'sn-cb'uang, tlie greater ]i:irt uf whiLli 

 seems to be Jurassic. 



The number of species brought back from Yiin-nan is small. 

 From T'ang-t'ang we have 



1. Anffioptendiitm cf. inf a return Fei^tm. 



'2. Cladophlebis sp. 



o. Chrpolithes Yamadal n. sp. 



Besides, there is an imperfect fragment of a fern which 

 seems to be a species of Glossopteris. From Sliui-t'ang-j)'u, we 

 have 



1) fiii« ^) 



