[ 391 } 
E XVIII. On Psygmophyllum majus, sp. nov., from the Lower Carboniferous Rocks of 
Newfoundland, aere a Revision of the Genus and Remarks on ils Affinities. 
By E. A. NEWELL ARB, M.A., Sc.D., F.L.S., F. G.S., Trinity College, Cambridge ; 
University Demonstrator in Paleobotany. 
(Plates 42-44 and 1 Text-figure.) 
Read 18th April, 1912. 
CONTENTS. Page 
1. Introduction. L9 sea pr dew ed VeVi RA a OR A 391 
2. Psygmopliyllum majus; sp. oy; Li. eiie it ee ue cei eae e 392 
3. Psygmophyllum flabellatum (Lindl. & Hutt.). .............Luuuu. 994 
4. A Revision of the Genus Psygmophyllum .. 2.0.0... .0ceuccucece 397 
9. A Discussion of the Affinities of Psygmophyllum .............005 403 
G: PODORTAPBT 1 E et... NI uiua vo tex chiesa c rie 405 
7. Explanation of the Plates ......... CC TTA VOTO A a ever ee 407 
1. INTRODUCTION. 
| Ix 1908, several remarkable fossil plant-impressions from Newfoundland were presented 
to the Sedgwick Museum, Cambridge, by Mr. Rowland Feilding. They had been 
collected during the previous year from the Shenanditti River, on the west side of Red 
Indian Lake, in the interior of that colony. The specimens have proved to be of con- 
siderable interest, both on account of their excellent preservation and also because one 
of the genera represented is exceedingly rare. Further, since very few fossil plants of 
any age have hitherto been recorded from Newfoundland, they form a welcome addition 
to our knowledge of the past floras of that country. 
. The specimens include representatives of two species, one of which appears to be 
new, and to be referable to the rare and little-known genus Psygmophyllum. Several 
examples of this plant will be described here under the name P. majus, sp. nov. The 
(other plants are identical with SpAenophyllum tenerrimum, Stur (Pl. 44. fig. 12). Both 
‘Stems and whorls of leaves are found, examples of which I have already figured in 1910 *. 
Some of them occur on the same slabs of shale as P. majus. These fossils afford 
the sole evidence which we have at present in regard to the age of the beds in which 
they occur. This species is recorded from the Lower Carboniferous of Silesia, and 
‘Closely similar plants are known from the Upper Devonian of Bear Island, and from 
beds believed to be of similar age in the State of Maine, U.S.A. The geological age of 
‘the rocks is therefore either Lower Carboniferous or Upper Devonian, more probably 
the former. Thin seams of coal were found associated with the plant-bearing shales 
* Arber (10), text-figs. 1 & 2. 
8N 
SECOND SERIES, —- BOTANY, VOL. VII. 
