XLvin] 



PITYOSTROBUS 



385 



Velenovsky 1 from Lower Cretaceous rocks in Bohemia as Finns 

 longissima, a species recently recorded by Dr Stopes 2 from the 

 Lower Greensand of England. 



Though in the absence of foliage-shoots cones of this type cannot 

 be assigned with certainty to any one recent genus, their great length 

 suggests comparison with those of Pinus Lambertiana and P. excelsa 

 rather than with cones of recent species of Picea. 



Pityostrobus Leckenbyi (Carruthers). 



This species was first described by Carruthers 3 from a specimen 

 in the Leckenby Collection, Cambridge, from the Lower Greensand 

 of the Isle of Wight. It is 10 cm. long and 5 cm. in diameter; the 





FIG. 779. Pityostrobus Leckenbyi. From the Lower Greensand of the 

 Isle of Wight. (After Carruthers; nat. size.) 



scales agree in external form with those of Cedrus and Dr Stepes 

 has recently proposed the generic name Cedrostrobus* in order to 

 emphasise this resemblance. Prof. Fliche 5 described a cone from 

 the Argonne as Cedrus oblonga which he believed to be identical 

 specifically with Abies oblonga of Lindley and Hutton, but 

 Dr Stopes gives Fliche's name as a synonym of Cedrostrobus 

 Leckenbyi. A cone of similar form is also described by Coemans 

 from Belgium as Pinus Corneti* and compared by him with Cedrus. 



1 Velenovsky (85) B. PI. i. figs. 1417. 

 - Stopes (15) p. 141, text-fig. 38. 

 3 Carruthers (69 2 ) PL I. figs. 15. 

 5 Fliche (96) p. 200, PL vm. 



S. IV 



4 Stopes (15) p. 143, text-fig. 39. 

 6 Coemans (66) p. 11, PL v. fig. 3. 



25 



