Affinities of the Palaeozoic Seeds of the Co no stoma Group . 5 
as a result we are able to publish our results and reconstructions with much 
more confidence than would otherwise have been the case. 
We now pass on to the detailed description of Conostoma oblongum 
and anglo-germanicum . This is followed by comparisons with allied seeds 
and by a series of diagnoses, including those of the genus and species ; the 
paper concludes with a general discussion on points arising out of the work. 
II. CONOSTOMA OBLONGUM. 
i. Enumeration of specimens. 
Our account of this seed is based on the following preparations, all 
from the seam nodules of the Lower Coal Measures of Lancashire and 
Yorkshire. 
University College Collection. 
When received. 
R. no 
Dulesgate .... 
Feb., 1905 
R. in 
Shore 
May, 1906 
R. 112 
Shore 
1906 
R. 113 
Halifax ..... 
Dec., 1907 
R. 114 
Halifax 
Dec., 1902 
R. 115 
Shore (contains two specimens) 
1906 
R. 1 16 
Shore ..... 
Dec., 1905 
R. 117 
Shore 
Oct., 1904 
R. 118 
Shore 
1906 
R. 1 19 
Shore (contains two specimens) 
1908 
R. 120 
Shore ..... 
Feb., 1906 
R. 121 
Shore 
Apr., 1907 
R. 122 
Shore 
May, 1909 
R. 123 
Deighton, Yorks. 
1910 
Mr. D. M. S. Watson's Collection. 
W. 267 Shore 1908 
W. 268 Shore 1908 
Williamson Collection. 
Nos. 1443 and 1444 Oldham. 
The only other specimen that we know of is that figured by Williamson 
in his 8th Memoir (1877), PI. XII, Fig. 86. It was lent him by the late 
John Butterworth, and has not been seen by us. 
The positions of these sections, other than those in the Williamson 
Collection, are plotted in relation to the median longitudinal section of the 
seed in Text-fig. 1, and in relation to the transverse section just below the 
level of the tapetal septum in Text-fig. 2. 
