lil] KAGEIOPSIS 457 



Pontaine recognised the similarity between Nageiopsis and shoots 

 of Podocarpus belonging to the section Nageia: this suggested the 

 ■choice of the generic name. Berry^ in his revision of Nageiopsis 

 transfers some of Fontaine's species to Podozamites ; he also reduces 

 the number of the species retained in Nageiopsis on the ground that 

 Fontaine attached too much importance to variations in the size 

 and form of the leaves. I have elsewhere suggested^ that some of 

 the shoots referred to Nageiopsis may be Araucarian, as in habit 

 they closely resemble Araucaria Bidwilli and Agafhis. Until 

 reproductive organs are discovered it is impossible to speak with 

 confidence with regard to the position of the genus. It may be 

 closely allied to Podozamites or, as Fontaine believed, it may be 

 related to Podocarpus. It should be noted that some of the speci- 

 mens included by Fontaine in Nageiopsis are hardly distinguishable 

 from Zamites Buchianus^. 



Trees or shrubs characterised by irregularly branched foliage- 

 shoots bearing leaves usually in two ranks but spirally attached; 

 the leaves exhibit a wide range in size and 

 shape, long and linear or lanceolate, acute or 

 subacute, more or less abruptly contracted at 

 the proximal end and attached by a very short 

 stalk; there are several parallel veins dichoto- 

 mously branched near the base of the lamina. 



Nageiopsis anglica Seward. 



This species* founded on the small specimen 



represented in fig. 815 has distichous leaves 



1—1-5 cm. long with several parallel veins. fig.815. Nageiopsi, 



The Enghsh Jurassic type agrees generally glica. (From a speci- 



with Nageiopsis microphylla Font, and N. des- ^«° ^^ '^e Whitby 

 ^ ^ .... . 1 n J! Museum; fnat. size.) 



crescens Font. : a similar form is recorded from 



the Wealden beds of Sussex s. Though satisfactory evidence of 



affinity is lacking it is permissible to suggest an Araucarian affinity. 



Nageiopsis longifolia Fontaine. 



The Unear-lanceolate leaves reach a length of 8—20 cm. and 

 5 mm. to 1-3 cm. in breadth; there are 9—12 veins unbranched 



1 Beny (10). ^ Seward (12) p. 33. ' Berry (11) PI. Lxi. 



* Seward (00) B. p. 288, fig. 51. ' Ibid. (95) A. p. 211, PI. xii. fig. 3. 



\ts an- 



