16 ROYAL SOCIETY OF CANADA 
The fruitage may be compared with Archæopteris, except that the 
pedicelled series of reproductive organs of the fertile pinnules of that 
genus are replaced by alternate sporangia or pod-like bodies in this. 
“PSEUDOBAIERA MCINTOSHI, n. sp. See plate, page 21. 
“The species is represented by incomplete fronds. 
“The rachis is smooth, but has a longitudinal shallow furrow. 
Attached to it are pinne the rachis of which has a somewhat scabrous, 
undulate surface, and shows when decorticated a number of vascular 
bundles. 
“The pinnules are set on this rachis about half an inch apart on 
each side, and at an angle of about 50° to 70°; they are long-oval in form, 
are about an inch and a half or two inches long, and are about three 
quarters of an inch broad, and are slightly arched forward in the outer 
half. They are deeply incised into about five long narrow lobes on each 
side, and a terminal lobe; the side lobes are directed forward at the 
ends, and are decurrent on the mid-rib; the lobes are alternately 
pinnate, slightly arched forward, have nearly parallel sides, and are 
truncato-lacineate at the ends, where there are from three to five mu- 
cronate points; in the lateral pinnules the first two lobes on the upper 
side are frequently united for one half of their length. The pinnules are 
thick and smooth, and the venation quite obscure, except near the ends 
of the lobes, where from three to five veins can be made out, one vein 
running to each mucronate point; decorticated examples show several 
parallel nerves about the mid-length of the leaf (or pinnule). 
“The fertile pinnæ are of smaller size, and bear alternately pin- 
nate, spatulate-ovate (hollow?) pod-like bodies, or sporangia; in the 
examples known these bodies do not extend to the base of the pinna, 
but there are one or two barren strap-like lobes at the base. This 
pinna is about an inch and a half long and half an inch wide, and 
shows about four spatulate lobes on each side. These spatulate lobes 
show a branched venation and possibly held seed vessels which became 
detached. 
“From the number of detached pinnules of this species found 
scattered on layers of the shale, it seems probable that the plant had a 
deciduous habit. 
“Horizon and Locality.—This plant was collected from a thin bed 
of shale, about 200 feet below the summit of the Dadoxylon Sandstone 
by Mr. William McIntosh at Duck Cove, Lancaster N.B.—Not rare. 
“The resemblance of this plant in its mode of branching, etc. to Bai- 
era may be seen by comparing its narrow, upright, pinnate lobes to the 
lobes of the leaves of Baiera; compare also the alternate pod-like fruit. 
! See Zittel’s Paleontology, Vol. III (Plant), p. 253. 

