On Sporocarpon orna‘uj)i. it) 
Ashton-under-Lyne, 1 showing the existence of a canal in tlie centre 
of each of the projections or crenulations, whilst the peripheral 
clusters of large cells are wanting. 
The object of the present note is to record the fact that 
Sporocarpon ornatum is nothing else than a transverse section of 
Lagenostoma pliysoides , a seed of which longitudinal sections had 
already been described and figured by Williamson in his 8th 
Memoir.- This identification is based on a comparison of the 
specimens in the Williamson Collection with others lately received 
from Mr. James Lomax, of Bolton. The agreement between the 
transverse and longitudinal sections is convincing in respect of 
structure, mode of preservation of the various layers, and 
dimensions. It is intended at some future time to describe the 
additional features that have been ascertained concerning the 
structure of this very interesting and little-known seed of the 
English Coal-Measures. In conclusion the writer would express 
his indebtedness to Miss Benson of the Royal Holloway College, and 
to Dr. D. H. Scott, F.R.S., who have kindly permitted him to 
examine preparations in their possession. 
F. W. OLIVER. 
’In the explanation of the figures, loc, cit., p. 474, this section 
is by an oversight named Sporocarpon anomalum. 
2 Phil. Trans. 1S77, p. 2414 and Figs. 77, 78 and 79. 
PROFESSOR BOMMER ON LEPIDOCARPON. 
O N the 18th of March last, my friend Professor Charles Bommer 
gave an account of the new genus Lepidocarpon , before the 
Belgian Geological Society. 1 Such a critical discussion of recent 
work is greatly to be welcomed, especially by the author whose 
work is discussed ; it is a pleasure to me to find, in this instance, 
that the views of Professor Bommer, as regards the wider questions 
involved, are in essential agreement with my own. There are one 
or two points, however, where his interpretation does not seem to 
'he Genre Lepidocarpon, Scott; Bull, de la Soc. Beige de 
Geologie, t. xvi, 1902, pp. 132-137. 
