54 CONIFEEOTJS -WOOD. 



20,466, Bugbrook, Northamptonshire (age doubtful). 20,468^ 

 Crick. 20,469, Kilsby tuunel. 20,473, Staverton, JTorthampton- 

 shire. 20,475, Kilsby tunnel. 20,482, Litcbborough. 20,483, 

 Eoade, Northamptonshire. 20,486, Northampton (partly con- 

 verted into jet). 20,488, Eilsby tunnel. 20,492, Bugbrook. 

 20,909, Brauaston, Northamptonshire (this and preceding thirteen 

 specimens from Miss Baker's Coll.). 40,671, "Whitby (partly 

 converted into jet), {Bean Coll.). 52,623, Whitby. 52,625, 

 Wliitby. 52,671, near Grantham. 52,842, 52,857, Charmouth, 

 Dorsetshire. 52,894, Lyme Eegis. 52,902, eight feet long ; Lyme 

 Eegis. 



h. Peieifaciions. 

 (Plates VI.-YII.) 



Although a considerable amount of driftwood occurs in the 

 Lower Lias beds near Lyme Regis, it is practically valueless 

 botanicaUy, as the tissues have not been petrified. Prom the Lias 

 of Yorkshire several specimens have been obtained in which the 

 tissues are exceedingly well preserved. Tate & Blake ' mention 

 the occurrence of fossil wood at various horizons in the Yorkshire 

 Lias, and Pox - Strangways ' speaks of wood in the zone of 

 Ammonites capricornus, A. margaritatus, and elsewhere. 



In his classic work on The Internal Structure of Fossil 

 Vegetalles Witham^ describes and figures sections of sUicified 

 wood from Upper Liassic beds near "Wliitby, from material supplied 

 by Mr. Nicol. He recognises two species which he names Pence 

 Lindleiana and Peuce Huttoniana. The wood referred to the former 

 species is undoubtedly Araucarian ; possibly P. Huttoniana may 

 also belong to the same type, but as it is not clear from Witham's 

 account ia what respect the two forms difEer from one another, 

 I propose to retain only the specific designation Lindleiana, or 

 rather Lindleii. Both names occur ia Witham's book, but the 

 latter is selected as being more in accordance with our present 

 system of nomenclature. 



1 Tate & Blake (76), pp. 39, 64, 153. 

 ' Fox-Strangways (92), passim. 

 ' "Witham (33). 



