'1 ART. 9. — ]\r. YOKOYAMA. 



In tlie following 'year, Prof. K. Yamada of the Kyoto 

 Universit}^, explored South-western China, penetrating into the 

 2-)rovinces of 8sn-ch'nang^^ and Yiin-nan.'^ 



Also during and after the late Manchurian campaign, many 

 of our geologists went to investigate the mineral wealth of Southern 

 JManchuria then occupied by our army. They were Messrs. T. 

 Ogawa, K. Inottye, N. Kanehara, N. Fukuchi and C. Oinouye, 

 most of whom belong to the Imperial Geological Survey of 

 Japan. 



Among the many valuable scientific prizes brought back by 

 these men, are the fossil plants collected in coal-mines, and there- 

 fore directly available for determining their geological age. The 

 greater part of these plants belong to those of the Mesozoic era, 

 while others are either those of the Carboniferous or of the 

 Tertiary period. The task of examining these fossils, I took upon 

 myself, and the following are results obtained from my study of 

 the Mesozoic forms. 



The Mesozoic ilora of China is already known from the 

 works of Schenk, Krasser, Zeiller, Newberry, and others ; 

 l)ut as the plants described in this paper all come from new 

 localities, I hope they will add not a little to the knowledge of the 

 Chinese flora of this formation. 



The plants belong to three distinct periods of the Mesozoic, 

 so that they may be treated under three distinct headings. 



]) 0jll- Also written Sccliwan, Sz,ts\v:in. etc. 



'-i) am- 



It is here to l)e nuteil thut the ('liiiiesc names of places are pronoiinceii nioie or less 

 differently in the dinerciU parts ol' the JOnijiire. Rut t'or the sake of' unifürmity, they are 

 all written iierein as they are pronounced according to the official dialect of Pekin, and 

 the mode of representing them in Roman letters followed in this paper is that proposed hy 

 TitdMAs 'NVAnK. 



