» 
420 Scientific Intelligence. 
_ [have included in the list such plants from New Brunswick as are 
known to me. Those from Grand Lake in that Province are I believe on 
the horizon of the Middle coal formation, though tending to the Upper. 
A collection formed by Sir W. E. Logan at Baie de Chaleur, in beds of 
the Lower and aera Middle coal formation, includes also some species 
whieh in Nova Scotia are more pg a one ae of the Upper coal formation. 
This apparent mixture of plants of different horizons, may be a conse- 
quence - the comparatively small shiuiedees of the New Brunswick coal 
rmatio 
In a present unsettled state of the species of coal plants, it 
much diffidenee that I venture to publish this list, which will without 
doubt admit of many corrections and improvements, even in the memoir 
on the formation of the Nova Scotia coals, with which I propose to fol- 
low it. I have, however, endeavored to avoid adding to the load of syn 
onyms, and have in all doubtful cases leaned to the side of identity with 
nown species rather than to that of giving new names. I may add, that 
the increase of my collection has enabled me to reunite es specimens 
which I foe regarded as representatives of distinct species. But for the 
rge number rs specimens which I have been enabled to examine, I 
should save tin] the case of several variable — as for example 
Alethopteris lnchitia and Lepidodendron corrugatu m, have erred in this 
I am constantly more and more convinced ‘that no satisfactory 
ress can be made in fossil Deheny without studying the plants as 
occur in the beds in which they are found, or in large num mbers 0 
_ mens collected from those beds, so as to ascertain the relation of their 
~~ 8 to a other. 
Dap on, Unger.—Large quantities Z -abee coniferous pe are 
found i in aie saunstodee of the coal formation in Nova Scotia; but, after 
slicing more than one hundred ioe sae “the following are the only 
species I can distinguish. It is to be observed, however, that the differ 
ent states of preservation of fh trunks rdnide their study and compat 
ison very di 
pec a sie Acadianum, s. te M. C.; D. materiarium, 5% 
M. and U. C.; D. antiquus, s. n,, L. ; D. an nnntatien, 8. %.; 
Aravcarires, Unger.— Species, — Araucarites gracilis, 8. ”., U. 6. 
Clipe edet Brongt.—Under this name I include four subgenera, Vidy 
Favularia of Sternberg, of which S, elegans i is the type; ¢ .) 
y- 
Hidolepi of allel of which S. seutellata't is the type; (3.) 5 ig a 
ype. 
~ To these may perhaps be added Asolanus of Wood (Proc. P hilad. At. 
Sci.), though most of the specimens of Sigillaria destitute of ribs are 
I would place Syringodendron and Calamodendron as members of z) 
gymnospermous “fanny Sigillariacee. Stigmaria may pireicant 
provisional genus, to include roots he rei with the ene 
rey flip Seca a) el poh M.C.; 8, (Fav.) te C: 
sellata Bronje 8. (Rhytidolepi) seutelata rongt., WM. pee C: 
S. ase: } Schfotheimniana Brongt., M. C.; S. (Bh.) Sal Brongt 5 
wnli Dawson (Jour. Geol. Soc., x.), M.C.; niform is Brongty 
