302 GEOLOGICAL SUEYEY OF THE TERRITORIES. 



PTEEOSPEH^nxES ^lULTiiNT^RYis, sp. uov. The outline of tlie leaf is 

 destroyed. From the direction of the Yeins, it appears to have about 

 tlie same form- as the former species, from which it differs, especially by 

 its numerous basilar veins, eight of which are visible, diverging fan-like 

 from the base of the medial nerve, and by tbe much more numerous 

 secondary veins, twelve pairs being counted in the leaves of this species, 

 while the former has only seven to eight pairs, with larger leaves. In 

 this species, also, the nervilles are deeper, less divided, and continuous. 



Pteeospee^htes Haydexh, sp. now A small leat; 3 inches long, 2 

 inches wide, ovate-lanceolate, obtusely pointed, rounded to the petiole, 

 (broken.) with borders, not overlapping at base, deeply undulate or 

 irregularly, obtusely short-lobed from below the middle to the point; 

 medial nerve deep and narrow; three pairs of thinner, inferior, lateral, 

 secondary veinSj diverging nearly in right angles from the medial nerve; 

 the fourth pair stronger, more oblique, more or less branching, ascend- 

 ing straight to the point of a lobe like the others, live pairs above it; 

 nervilles deep, continuous, connected in the middle by cross-branches. 

 A fine leaf, allied to P. sj)ectaMUs, Heer, of Xorth Greenland, in Fl. Arc., 

 II, p. 480, PI. xliii. Fig. 15.) 



]Mag]S'OLIA e>:sifolia, .9^;. nor. Eepresented by two leaves, one 3 

 inches long, 1 inch wide ; the other G inches long, 2i inches broad ; linear, 

 abruptly cuueate to the base or petiole, (not seen,) and also abru]3tly 

 round-pointed at the top ; borders, entire or slightly wavy ; medial 

 nerve, broad, flat; secondary veins, oblique, diverging 40^ to 50°, curv- 

 ing from the middle upward, and branching twice or more in anasto- 

 mosing with branches of the nearest veins. The leaves are of thick, 

 coriaceous texture, having the same nervation and areolation as our 

 Magnolia grand iflora, L. It is related to Magnolia crassifolia, Gopp., 

 {Beyiraege zur Ter. FL JSchlesiens, Tab. iv, Fig. 1 and 2.) 



QuEECUS MuDGii, sp. iiov. Au oval lanceolate leaf, (point broken.) 

 either narrowed to the base or somewhat enlarged and abruptly rounded- 

 truncate to the petiole; medial nerve twice as broad as the secondary 

 veins, 8 to 10 pairs, which are alternate or opposite, oblique, (40°,) 

 straight or slightly flexuous in passing to the borders, branching once 

 or twice, and entering, with each of their divisions, the point of a short 

 tooth ; the borders being regularly marked by short, equal teeth separated 

 by obtuse sinuses. Closely allied to the leaf, published by Dunker as 

 Castanea Hansmanni, in PJfanzcnreste aiis dcm Quadersanclstein von 

 Blanlenhurg, Pal. Vol. lY, p. 170, PI. xxxiv, Fig. 1, at least for the ner- 

 vation and the dentation of the borders. 



Aealia (?) QUIXQUEPAETITA, sp. nov. Under the name of AraJia 

 formosa, Professor Heer has published, in Flora Cret. von Moletin, p. 18, 

 PI. viii. Fig. 3, a trilobate leaf, serrulate on the borders, to which ours 

 is closely allied. This merely differs by a division of the lateral lobes 

 from the middle, thus forming aquinque-partite leaf, and by the borders 

 which are entire, at least as far up as they are preserved, the upper part 

 being destroyed. It is a coriaceous leaf with three broad, flat, secondary 

 veins, diverging, a little above the base of the leaf, from the enlarged 

 medial nerve. The lateral veins divide still from below the middle, 

 forming on both sides two new divisions of the leaf, which, as said 

 above, becomes quinque-partite. I do not know any living species of 

 AraJia to which this leaf may be compared. 



Plataxus Kewbeeeyats^a, Heer, (Phill. Cretac, p. IC, PI. i, Fig. 4.) 

 A fine and more complete specimen of this species is i^reserved in the 

 Museum of Comparative Aiiatomy of Cambridge, from the collection of 

 fossil plants of Professor Marcou.' It shows a rhomboidal leaf, enlarged 



