FOSSILS OF THE WHITE CHALK. 
U9 
MONOCOT YLEDONOUS PLANTS. 
Equisetum (traces of) 
Lycopodites uncifolius 
magnified leaf of ditto 
Thuites expansus ? Sternberg 
Scolopendrium solitarium ... 
(Sternberg, tab. xxxvii. fig. 2.) 
Aspleniopteris Nilsoni ? ... 
(Sternberg, tab. xviii. figs. 3, 4, 5 ?) 
PI. VIII. fig. 3. 
PI. X. fig. 11 
fig. 4, 
At the White Nab. 
} Also in the lower sand- 
stone. 
Also in lower sandstone. 
Also in the lower sandstone 
and shale ; also Brandsby 
in slaty limestone. 
The nervures stronger than 
in Sternberg’s specimen 
from Hor. 
Sphaenopteris. — 1. digitata 
< 
fig. 6. 
Compare Sph. laxa, Stern- 
berg. 
2. stipata 
. 
fig. 4. 
Also in the lower sandstone. 
3. latifolia 
. 
PI. VII. fig. 18. 
From Scalby. (Mr. Bean.) 
4. longifolia 
. 
fig. 17. 
Rare. 
Neuropteris lobifolia 
PI. X. fig. 13. 
Uncommon (Mr. C. Preston.) 
Pecopteris. — 1- ligata 
PI. VIII. fig. 14. 
Also in the lower sandstone. 
2. paucifolia ... 
. 
fig. 8. 
Leaves never seen attached. 
3. hastata 
. 
fig. 17. 
Leaves very crowded. 
4. recentior ... 
* 
fig. 15. 
Resembles osmunda gigan- 
tea (neuropteris flexuosa) 
of the west-riding col- 
lieries. 
' 
Upper surface. Is this ap- 
5. curtata, the leafits 
pearance accidental? the 
longer than usual, 
■ 
fig. 12. 
seed vessels appear to 
and granulated 
run along the secondary 
nervures. 
6. exilis 
. 
fig. 16. 
Upper surface, marked with 
round swellings over the 
seed vessels. 
7- cmspitosa ., , 
fig. 10. 
Rare. 
8. crenifolia ... , 
fig. 11. 
Enlarged capsules at 11 a 
Cycadites.— 1. comptus ... 
PL VII. fig. 20. 
2. tenuicaulis ... , 
fig. 19. 
3. sulcicaulis ... 
fig. 21. 
Dr. Murray’s specimen. 
4. pecten 
fig. 22. 
