YON Ettingshausen. — Foss'll Flora of New Zealand. 299 



nente, recto vel 'paullo flexaoso ; nervis secnndariis i)i una latere 

 7, sub angulis 40^^-50° orientihus, rcctis simplicihus ; nervis ter- 

 tlariis teniiissimis, angulis snhrectis egredientibus. approximatis, 

 flexiiosis ramosis, inter se conjnnctis, reticulum tenerrinium vix' 

 conspicuum includentibus. 



Locality : Wangapeka, Nelson (Cauterbui'v Museum). 

 [Ex Coll. N.Z. Geol. Surv., 1867; Hector.] 



The beech-leaf shown in fig. 9, which was found among 

 the plant-fossils at the locality indicated, makes the impression 

 of a delicate, not at all leathery leaf ; it is oviform, pointed, 

 either unevenly serrate or almost biserrate ; it is traversed 

 by a fine primary nerve, w'hich is scarcely pronounced to the 

 middle of the lamina ; from the primary nerve start on each 

 side a few straight secondary nerves, which run at acute angles 

 to the marginal serroe. Tlie tertiary nerves are very fine ; they 

 start almost at right angles, are remarkably close together 

 and connected with each other ; they are winding, bifur- 

 cate or braiiching. The tertiary nerves, as well as the ver}- 

 delicate network which lies between them, are shown enlarged 

 in fig. 9a, They were only perceptible on the lower part of 

 the fossil leaf. 



The species to which the beech-leaf described belonged is 

 a true representative of the European Tertiary Fagus ferronia, 

 Ung., and consequently of the division Eufagus, DC., under 

 close comparison of the reticulation and of the tertiary 

 nerves oi Fag us ferronicB (ioY which I could command ample 

 material) with the relative characteristics of the beech-leaf 

 described. I find, however, that in the Tertiary beech the 

 reticulation is more developed, and composed of comparatively 

 larger meshes. I find also that the tertiary nerves are neither 

 so fine nor so close together. In Fagus p)^'isca, m., of the 

 Chalk flora of Niedcrschona, we have a similar quercoid reti- 

 culation formed by very close meshes as in F. nelsoniana, but 

 in the former species the secondary and tertiary nerves are 

 almost the same as in Fagus ferronice, and the texture is 

 leathery. 



We may consider Fagus polyclada, Lesq., of the Dakota 

 group, as a vicarious species of the North American Chalk 

 flora, the leaf of which agrees in shape and texture with the 

 leaf described, but it deviates as regards the nature of the 

 edge. 



Fagus producta, sp. nov. 



Plate XXXII., fig. 1. 



F.foliis coriaceis, c basi ovata lanceolato-aciiminatis, viar- 

 gine denticulatis ; nervatione craspedodroma, nervo primario 

 valido, recto ; nervis secundariis sub angulis 40^-50^ orientibns. 



