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essentials most closely. The Quercus pliilippinensis, (PL VII, fig. 2.) whose 
only habitat in the existing flora is the Philippine Islands has stiff, coriaceous, 
shortly petiolate, ovate to ovate-lanceolate, acuminate, entire leaves, with 
camptodromic venation ; from the very prominent midrib spring on either 
side 5-7 strongly curved secondary veins, ascending towards the margin at 
angles of 40° to 50°. The tertiary veins, which, on an average, are 1 milli- 
metre distant from one another, are connected, and perfectly transverse. Of 
species belonging to the section named, which are found in tropical Asia, and 
show a similar character in their leaves, although not so nearly allied to the 
fossil species as the Q. pliilippinensis, may be mentioned Q. Champione, 
Peiith., from the island of Hongkong, and Q. costata, Blume, from Java. 
Among other genera of different orders in which similar leaves or, 
more especially, leaves with transverse tertiary veins occur, I would adduce 
R terosperrnum, Cornus, Berchemia, Rhamnus, Ilircea, and Banisteria. The 
leaves of Bterospermum have always a stronger development of the tertiary 
veins, at least on the outer side of the lower secondary veins. In Cornus all, 
or at least the uppermost, secondary veins are acrodromic. In Berchemia 
and those species of Rhamnus which on account of their transverse tertiary 
veins may be adverted to in this connection, the secondary veins are numerous, 
and the tertiary veins mostly still finer and more approximate than in the 
above-mentioned species of Quercus, section Cyclohalanus , and besides the 
texture of the leaves is never so strong as in these. In Ilircea and Banisteria 
the tertiary veins are flexuose or bent, and in Banisteria the secondary veins 
arc in addition more numerous. 
Of hitherto known fossil species of oak, none is closely allied to the 
Q. prcepliilippinensis. 
Locality and Horizon. — With the preceding species. 
Quercus drymejoides, sp. nov. 
Plate III, Fig. 2, 
Sp. Char . — Q. foliis coriaceis petiolatis lanceolatis basin et apicem 
versus angustatis, margine grossc dentatis ; nervatione craspedodroma ; nervo 
primario valido recto prominentc, apicem versus attenuato ; nervis sccundariis 
validis, subangulis 35-45° orientibus, numerosis simplicibus rectis vel sub- 
arcuatis, excurrcnt ilms, spinulam formantibus ; nervis tertiariis tenuissimis 
angulo subrecto excuntihus, simplicibus vel furcatis, inter sc conjunctis. 
