560 Drs. M. C. Stopes and K. Fujii. Studies on the [May 13 r 



Schizccopteris Tansleii, gen. et spec. nov. The sorus and sporangia of a 

 Schizaeaceous fern. 



Fasciosteloptcris mesozoica, gen. et spec. nov. The stem and petiole of a 

 fern with a dictyostelic anatomy. Probably allied to the Dicksoniacece. 



Fern rootlets, in excellent state of preservation, showing the diarch stele of 

 the leptosporairgiate ferns. 



Zamiophyllum corclaitiforme, gen. et spec. nov. The leaf of what appears 

 to be some plant of Gycadean affinity, the anatomy bearing con- 

 siderable resemblance to that of Cordaites. 



Yczonia vulgaris, gen. et spec. nov. A Gynmosperm, of which stems, 

 unthickened twigs, leafy axes, are all very plentiful. It is the 

 commonest plant in the material, and at the same time the most 

 unique. In the anatomy of both main axis and foliage it is not like 

 any known type. 



Yezostrolms Oliverii, gen. et spec. nov. The fructification of a Gymnosperm, 

 the cone bearing simple scales with seeds, one on each, which are 

 like those of Cycads in some respects, but bave a nucellus standing up 

 entirely free from the integument with a well marked epidermis 

 between. 



Though continuity is lacking between these two plants, there seems 

 considerable ground for suspecting them of belonging to the same plant from 

 anatomical points of likeness. 



Araucarioxylon tankoensis, spec. nov. Secondary wood, showing remarkably 



clear pittings in the transverse sections. 

 Cedroxylon Matsumurii, spec. nov. Well preserved secondary wood. 

 Cedroxylon Yendoii, spec. nov. Secondary wood, with traumatic resin 



canals. 



Cunninghamiostrobus yubaricnsis, gen. et spec. nov. A cone, as its name 

 implies, belonging to the family of the Cunninghamias, with its 

 external appearance partly preserved and the cone scales and axis 

 fairly well petrified. The seeds have apparently been scattered. 



Cryptomcriopsis antiqua, gen. et spec. nov. Stem with leaves attached, the 

 foliage very like that of a Cryptomeria. 



Saururopsis niponensis, gen. et spec. nov. The stem and attached roots of 

 an Angiosperm, probably to be iucluded in the Saururacese. 



Jugloxylon Hamaoanum, gen. et spec. nov. The secondary wood of an 

 Angiosperm. 



Popidocaulis yezoensis, gen. et spec. nov. The stems of an Angiosperm, 

 with cortical tissue. 



