30 
of leaf, more or less the Q. drymejoides. As regards tlie dentate margin, 
however, the Q. Drymeja and Q. pseudocastanea differ more from our 
species than the above-mentioned oak of the Cretaceous Mora, and the Q. 
grccnlandica and Q. furcinervis, differ more in their venation. The described 
leaf fossil differs from the Castanea leaves in its leathery texture. 
Locality and Horizon. — With the preceding species. 
Queucus Darwinii, sp. nov. 
Plate IT, Fig. 3. 
Sp. Char. — Q. foliis subcoriaceis, lanceolatis, acuminatis, basi inte- 
gcrrimis ; nervationc craspedodroma ; nervo primario recto, basi valido, apicem 
versus angustato ; nervis secundariis distinctis, subangulis 40-50° orientibus, 
approximate, subrectis, apicem versus abbreviatis ; nervis tertiariis incon- 
spicuis. 
Ohs. — This fossil, on account of its great similarity with the leaves of 
Qucrcus hidcns, fleer, sp., of the Tertiary Mora of Sumatra, Q. hournensis, 
de la Harpe, and Q. lonchitis , Ung., of the European Tertiary Elora, and 
finally those of the still existing Q. oxyodon, Micp, from the East Indies 
(El. VII, fig. 6), can also scarcely be referred with more right to any other 
genus than Qucrcus. In form it corresponds with the last no less than 
it corresponds with the two first as regards dentation and venation, more 
especially in respect to the more numerous secondary veins. Q. hidcns has, 
as its analogous species, Q. Lohhii, Ilf. and G., with the leaves rounded at the 
base. The Australian genus Qallicoma might also be mentioned here, in 
which we meet with lanceolate and dentate leaves, with craspedodromic 
venation. These, however, have a rougher dentation, which extends to the 
base, a thicker texture, and the more prominent secondary veins issue at more 
obtuse angles. 
I dedicated the species in memory of the immortal founder of 
phytogcnetic science, Charles Darwin. 
Locality and Horizon. — With the preceding species. 
Queucus Tasmanii, sp. nov. 
Plate II, Fig. 4. 
Sp. Char. — Q. foliis coriaceis oblongis, undulato-lohatis, lohis integcr- 
rimis , nervationc c camptodroma et craspedodroma mixta ; nervo primario 
