MESOZOIC PLANTS FROM CIITXA. 11 



with anv cle2;ree of certaiiitv ; still it seuiiiy to be u form undoubtedlv 

 belonging to those found in the Junissic. Therefore we may 

 fairly assert that we have heie a ionuation wiiich probably cor- 

 resjDonds to the one above named. 



d. Pao-êrh-shan.'^ 



A piece of light grey sandy shale, found by Mr. Ogawa in the 

 coal-mine of the above place, contains numerous fragments of 

 roots of an Equisetaceous plant which, however, resemble those 

 of Phyllotheca slblrica IIeer of the Siberian Jurassic, and whicli 

 I have therefore called Phyllotheca sp. Also a small fragment of 

 a pinna of a Cladophlehis was found with acute pinnules. But 

 it is so imperfect that it can not be determined with any degree 

 of accuracy. On this account, I leave the age of this coal- bearing 

 tormation undetermined, although presumably it is also Jurassic. 



III. Cretaceous Plants. 



At two places in the Mesozoic Basin of Ssu-ch'uang, Prof. 

 Yamada collected plants which are decidedly younger than those 

 found in other localities. These two })laces are called Shi-kuan- 

 fzu and Sha-ehi-miao. 



a. Shi-kuan-tzu, Chao-hua-Hsien.-* 



This i)lace lies north-east of Ching-tu-Fu'* the capital of the 

 province, and very near the northern boundary of the Mesozoic 

 Basin. The i)lant-bearing i-ock which occurs together with coal- 

 seams is a dark grey friable shale, in which the plants seem to 



2/ BgftU^îîilif. 



