[MATTHEW] FLORA OF THE LITTLE RIVER GROUP NO. III 9 
Snails, Crustaceans, Myriapods, Insects, and even Batrachians; these 
also must have had a terrestrial home for a long anterior period. 
(3). The Flora as it appeared in Silurian time with many broad 
leaved, and many reed-like plants, indicating a humid, warm and per- 
haps insular climate. The flora was presented in three aspects (a) that 
of the Dadoxylon Sandstone (b) that of the Lower Cordaite Shales 
(c) that of the Upper Cordaite Shales. 
Here occurs a change of Climate and a new type of Flora. 
(4). Here follows the Psilophyton Flora of the Mispec Group 
(Lower Devonian). 
(5). Acadia becomes continental, but no land fauna or flora are 
known there, (Middle Devonian.) 
Extrusion of granite with folding and metamorphism of the strata. 
(6). The Psilophyton—Lepidodendron—Archeopteris—Aneimites 
Flora becomes fully developed (Upper Devonian). This affords passage 
to the Lower Carboniferous Flora. 

Plants of the Little River Group, described chiefly by Sir J. W. Dawson. 
The names used in this catalogue are chiefly those of Sir J. W. 
Dawson, alternative names and those of new genera, species, etc., are in 
italics. 
EQUISETIN Æ. 
The writer has put this ancient group of plants first on the list 
because of their variety and perfection. The large number of genera 
and species show an early differentiation and prove the antiquity of the 
group and the fact that one species persisted from near the beginning 
of Silurian to Permian time shows its adaptability to Palæozoic condi- 
tions, and other of the type were almost equally long-lived. The sea- 
weeds of Ordovician Time described by Whitfield, Rudemann and 
others show the early utilization of this mode of division of the stem 
by the marine Algæ. Prof. O. Lignier in his Morphological Evolution 
of the Vegetable Kingdom shows how Land Plants may have been 
derived from the Algæ, etc. 
