436 Lepidostrobus kerituckiensis, nomen nov., formerly L. Fischeri. 



Lepidostrobus kentuckiensis, nomen nov. 



Lepidostrobus Fischeri, Scott and Jeffrey* (non Renault). 



Cone large (4 cm. in diameter to outer end of sporangia). 

 Sporophylls in about 35 vertical series. 



Stele with a large " pith " of prosenchymatous cells, surrounded by a 

 somewhat narrow ring of xylem with prominent angles. 

 Leaf-traces with definite, confluent sheaths. 



Inner (or middle) cortex narrow, with an interwoven structure, but no gaps. 

 Outer cortex very wide, prosenchymatous. 



Pedicels of sporophylls triangular in section, with a groove and median 

 ridge on the upper surface ; vascular bundle (rarely preserved) lying in soft 

 tissue above the median ridge. 



Sporangia reaching 17 mm. in length, with a palisade-wall and distal crest. 



Microspores in tetrahedral tetrads. 



Tetrads about 96/a, individual spores about 60 x 48/* in diameter, smooth. 



From the base of the Waverley Shale, near Junction City, Boyle County, 

 Kentucky, U.S.A. 



* 1 Phil. Trans.,' B, vol. 205, pp. 354-363, Plate 29, phots. 15-21 ; Plate 39, figs. 20-23 

 (1890). 



