MR. CLEMENT RBID ON EAST NORFOLK. GEOLOGY. 
•293 
the latter in the narrower nerve. The claim of //. Richardsoni to 
specific rank is, however, held by some bryologists to be rather of 
a doubtful nature, and the characters on which it is founded 
certainly leave somewhat to be desired. 
“ Another plant of some interest is Hyp. polygamum , Schimp. 
This occurred in considerable quantity, but always in a small and 
slender form, with the nerve often very feeble, and at times almost 
obsolete. The species is one found not rarely at the present day in 
Britain ; but, as a rule, it is the typical and larger forms that occur 
here, with well marked nerve, while varietal forms such as the 
above are rare ; on the other hand, in Spitzbergeu, they appear to 
be frequent (cf. Berggren, Musci et Hepatic® Spetsbergenses). 
The remaining species are all frequent forms at the present day. 
“ The following is a list of all the species found that were at all 
determinable : — 
“ Amblysteqium varium, Lindb. 
Hypnum polygamum, Schimp. 
TT , . ( One or other, perhaps both of 
H. SENDTNBRI, Schimp. \ . . . - 
Tr _ , . < these species or varieties ot 
H. wilsoni, Schimp. / , 
k the same species. 
H. capillifolium, Warnst. 
H. FLUITAN8, L. 
If. REVOLVEN8, Swartz. 
11. TNTERMKmUM, Lindb. 
H. RICHARDSONI, Mitt. 
11. TURGKSCEN3, Sdlimp. 
Pleurocarpus seta and pericfletium, indeterminable.” 
Though these masses of felted moss were obtained from the 
spoil-heap and the well-sinkers had not recorded their occurrence, 
yet there is no real doubt as to the order of the strata, for at the 
time of the visit the well had only been sunk a few feet lower, and 
was in the coarse gravel of the Cromer Forest-bed. The arctic 
plants occur somewhere between fifty-live and sixty-one feet, and 
from the quantity of material thrown out, the bed must have been 
at least two feet thick. 
The Cromer Forest-bed calls for no remark ; it is identical with 
that exposed on the foreshore at Mundesley, and has about the same 
VOL VII. 
u 
