472 PEOFESSOE HEEE ON THE POSSIL PLOEA OF NOETH (GREENLAND. 
39. Quercus platania, Hr., Plates XLVI. figs. 5; LY. 3 c. Hr. FI. Foss. Arct. p. 109, 
pis. xi. figs. 6 ; xlvi. 7. Atanekerdluk. 
The leaf tapers towards the base, and the margin has very large teeth. The secondary 
nerves are long, and send out tertiaries, which run into the teeth. 
40. Quercus Steenstrupiana, Hr., Plate XLVI. fig. 4. Hr. FI. Arct. p. 109, pis. xi. 
figs. 5 ; xlvi. 8, 9. Hat. Atanekerdluk. 
A small leathery leaf, more tapered at the base than those figured in my ‘ Flora Arctiea; 7 
the teeth are small and sharp. The collection contains many other leaves, which agree 
well with pi. xlvi. fig. 8 of FI. Arct. It seems to agree better with the Q. densifiora , 
Hook., var. Hartwegi , from California, than with any of the species with which I have 
compared it in my ‘ Flora Arctica.’ 
41. Quercus Laharpii , Gaudin, Plates XLIV. figs. 10 ; XLIX. 2, 3, 4 a. Foliis coriaceis, 
lanceolatis, basi in petiolum attenuatis, integerrimis, antrorsum sparsim denticulatis, 
nervis secundariis angulo acuto egredientibus, superioribus, craspedodromis. Gaud, 
contr. a la FI. Foss. Ital. ii. p. 45, pi. iii. figs. 5, 10. Hab. Atanekerdluk. 
Plate XLIV. fig. 10 (other side Plate XLIX. fig. 4«) is a leathery leaf, more tapered 
towards the base than the apex. The upper portion has some very small teeth, but the 
lower is entire. On each side seven secondary nerves run into the teeth. The areas 
are covered with fine nervules. 
The leaf agrees well with fig. 5 of Gaudin, which represents one from the argiles 
brulees of the Val d’Arno, which has a petiole, wanting in our Greenland leaf. The 
apex is acuminate. Plate XLIX. fig. 3 belongs, I believe, also to this species, and 
agrees with pi. iii. fig. 10 of Gaudin. The leathery leaf is tapered towards the base, 
but broader than fig. 4 a. The lower secondary nerves are camptodromes, and the areas 
finely reticulated ; the petiole is pretty long. Fig. 2 represents a similar leaf, with the 
upper secondary nerves craspedodromes. We find similar leaves in Q. echinocarpa , Hook. 
XV. Ulmace^e. 
42. Planera TIngeri , Ett., Plates XLY. figs. 5 a, c; XLVI. 6, 7 a. Hr. FI. Arct. p. 110, 
pi. ix. fig. 8 b. Plate. XLY. fig. 6 agrees in the nervation, and fig. 5 in the denti- 
culation, with pi. lxxx. fig. 17 a of my FI. Tert. Helv. Fig. 7 has very large teeth, 
as in fig. 11 of FI. Tert. Fig. 5 b is a very small leaf, such as often occurs in Pla- 
nera TIngeri and one living species. 
XVI. Morels. 
43. Ficus? Gronlandica, Hr., Plate LIY. fig. 2. Foliis petiolatis, amplis, basi inaequi- 
lateralibus emarginatis, cordato-rotundatis, integerrimis, palminerviis, nervis secun- 
dariis sparsis, camptodromis. Hr. FI. Foss. Arct. p. Ill, pi. xiii. fig. 6. 
