116 ROYAL SOCIETY OF CANADA 



Une along the middle. ^Y]len there are several whorls of leaves at an 

 internode the outer {lower) leaves are narrow (1 to 1^ mm. wide) 

 and thin, and leave hut a faint impression on the stone; these leaves are 

 about 9 cm. long and are somewhat concave on the upper side. 



AxîJULUS. — A distinct annulus or sheath is found at the upper 

 whorl of leaves of a node; the leaves pass through this memhrane {i.e., 

 are outlined against its thinner substance). The annulus is about 

 three times the ividth of the stem at the upper branches of the plant, 

 and no annulus has been observed on the lower whorls of an internode 

 where more than one whorl is present. 



EooT?. — An elongated undulating band of a root or rhizome occurs 

 in the sandstone beds where Bamicalamus is found which pushed its 

 growth through the sand where this plant was imbedded; it is, perhaps, 

 the root or rhizom^.e of this species; apparently only one side was pre- 

 served, the other may have been more perishable. It has obscure, low, 

 lanceolate aréoles on ils surface that resemble the bolsters of a badly 

 preserved Lepidodendron. These rhizomes has a length of fifteen centi- 

 metres or more, and a width of one and a half centimetres. 



Examples of what appear to be the upper branches of this plant 

 resemble Asterophylliies rigidus Gein., but the leaves are more elon- 

 gate; in this part of the plant the leaves are less spreading than in 

 the lower whorls, and they are more rigid; the longest leaf (though 

 the full length, is not sIio-rti) is 7 cm. long, and is heavily channelled 

 for a part of its length; the flattened stem is 3-4 mm. wide; it as 

 striate lengthwise with about nine grooves; the nodes are about 35 

 mm. apart, and there is a whorl of about 12 leaves at each node, spread- 

 ing upward at an acute angle. 



Horizon and Locality — This species was collected from the Da doxy- 

 Ion sandstone at Duck Cove, Lancaster, !N".B., about two Imndred feet 

 below the summit of the Dadoxylon sandstone by Mr. Wm. Mcintosh. 

 The specimens described above as probably the upper branches of this 

 species were collected from Bed î^o. 1 of Hartt's section at the Fern 

 Ledges by j\rr. Geoffrey Stead. Both are, therefore, from the Dadoxy- 

 lon sandstone. The species occurs also in the higher beds of the 

 Upper Cordaite shales, in sandstone layers, at Murphy's Point, on the 

 east side of St. John Harbour. 



