10 ART. 5. — M. YOKOYAMA. 



known from the Ehsetic of Sweden. The specimen shown in our 

 figure is the best we have. It is a leaf composed of several, 

 narrow, parallel-sided lobes which are obtuse at apex and arranged 

 in a fan-shaped manner. The breadth of the lobes reaches 5 mm, 

 in which space we can count 7 or 8 fine, parallel veins. 

 Not rare, but mostly in small fragments. 



2. Plants fVom Bitchu. 



The neighbourhood of Nariwa, a little town in the province 

 of Bitchu, has long been known as one of the localities of Pseu- 

 domonotis ochotica Keys., a bivalve peculiar to the Alpine faciès 

 of the Upper Triassic. 



The order of rock-layers observed at this place and believed 

 to belong to the Mesozoic formation, when counted from below, is 

 as follows : 



1. Sandstone, grey, fine-grained, often argillaceous and then 

 darker-coloured, containing innumerable remains of Pseudomonotis 

 ochotica which is almost the only fossil ever found in this layer. 



2. Sandstones and Shales, alternating with each other. The 

 former is similar in character to No. 1, while the latter is often 

 coaly and black, and contains impressions of vegetable remains. 

 In this complex, there are two anthracite layers near Nariwa, 

 each a foot in thickness. 



3. Schalstein, red to dark red, very fine-grained and looking 

 like shale. In the lower part of this stratum, there is intercalated 

 a layer of conglomerate consisting of pebbles of a light grey 

 Fusulina-limestone and of red and green tufiites, cemented by a 

 green tufaceous matter, while in its upper part we find a stratum 



