JURASSIC PLANTS FEOM KAGA, HIDA, AND ECHIZEN. 19 



ever we know as yet a comparatively small number of species. 



We have still two interesting plants remaining, viz. Dictyozamites 

 indiens Fstm. and a Sagenopteris ; the first hitherto confined to the 

 Rajmahal or Liassic 31 ) flora of Indin, and the second allied to Sage- 

 nopteris rhoifolia Presl which is also partly Liassic, but principally 

 Ehaetic in Europe. This latter has also been described from the 

 Mesozoic formation of Queensland in Australia, which Feistmantel is 

 inclined to believe to be Liassic. 32 ) 



From what I have stated above, 19 species or 95 °/ of 

 those identified have been found in the ' Brown Jura ' of other parts 

 of the world, and only 1 species or 5 °/ in the lower deposits. There- 

 fore, as Dr. Gey 1er had already done, 33 ) I do not hesitate to conclude 

 that the Jurassic flora of Kaga, Hida and Echizcn belongs to the same geo- 

 logical horizon as the floras of Siberia, Spitzbergen, and Yorkshire, namely, 

 to the Bathonian Stage of the Inferior Oolite, with special relations to 

 the flora of Siberia. This view is moreover justified by the occurrence 

 of Czckanowsliia, Taxites and Palyssia, which have their nearest allies 

 in forms already found in the Inferior Oolite. 



It may perhaps be urged, that although the plants from most of 

 the localities are decidedly Oolitic, yet Ozö which has given Dictyoza- 

 mites indiens and a Sagenopteris allied to Sagenopteris rhoifolia, might 

 belong to a horizon somewhat lower than that of the Inferior Oolite. 

 This question, as far as our [»resent investigation goes, must be an- 

 swered in the negative, as the place has yielded, besides these two 



31) Comp. Feistmantel's Jurassic Flora of the Rajmahal Group, p. 109. 



32) 0. Feistmantel: — Palaeozoische und Mesozoische Flora im östlichen Australien, Palaeou- 

 togr. 1879, Suppl. Ill, Lief. Ill, Heft 4, p. 17 A. In this work the author mentions 6 other species 

 as occurring with Sagenopteris rhoifolia, viz., Sphenopteris elonaata Carr., Thinnfeldia odon- 

 topteroides Fstm., Cijclopteris cuneata, Taeniopteris Daentreei Mc Coy, Otozamites cfr. Mandeslohi 

 Kurr, unci Cardiocarpon australe Carr. These are quite foreign to our flora and possess an Indian 

 aspect. 



33) Ueber foss. Pflanz, a. d. Juraform. Japans, p. 223. 



