122 ROYAL SOCIETY OF CANADA 



ends of the leaves or bracts of this spike are not certainly known, but 

 no appearance of branching \ras observed. 



A portion of a whorl of what may be a young stem of this species 

 shows three forked leaves, narrow and approximating at their base, they 

 are otherwise like the elongated leaves of this species. 



The depressed nodes in some examples of this species cause them 

 to resemble branches of Annularia, but I could see no annulus or ring 

 at the base of the leaves. 



Horizon and Locality. — This species occurs in a shale which has 

 the texture of that of Beds 7 and 8 of Hartt's section. 



AsTEEOPHYLLiTES LEXTUS. Du. Plate Y, Figs. 5, 6, 7. 



1868 Asterophyllites laxa, Acad. Geol.. p. 539. 



1871 Asçerophyllites lenta. Fossil plants of Dev. etc., p. 29, pi 5, fig 60. 



Dawson's diagnosis is as follows; — 



Stem slender, feeble, delicately striate. Leaves long, linear, une 

 nerved, in vjhorls of about ten. 



" This species is founded on a few specimens in Professor Hartf s 

 collections. It is quite distinct in form and habit from any of the 

 others." ^ 



The type specimens of this species do not show more than seven or 

 eight leaves in a whorl, and they are mostly erect and ascending; they 

 possess a faint mid-rib, and when preserved in their full length the 

 point is acuminate. 



Professor Hartt reported A. longifolia (which to him included this 

 species from Bed Xo. 2 and doubtfully from Bed Xo. 1. The texture 

 of the shale in which A. lenta is preserved is that of Bed 2. 



The absence of an annulus and the obscurity of the mid-rib would 

 seem to indicate that this species should be retained in Asterophyllites. 



Horizon and Locality. — From Bed 2, Fern Ledges, Lancaster, X.B. 



Asterophyllites parvulus. T)n. Plate YI, Figs. 1, 2. 



Dawson, Asterophyllites parvula, Acad. Geol, p. .539, Fig. 188A. 

 Dawson, Asterophyllites parvula, Foss. Plants, Dev. U. Sil. Can., p. 27. 



Dawson's description of tliis species is as follows: 

 Branches slender, leaves 5 to 6 in a whorl, subulate curving up- 

 îrards half a line to a line long (1-2| mm.). Internodes equal to the 



'■ This is the species which Sir William in his Acadian Geology described 

 as A. laxa. In the specimens returned to the Natural History Society by him 

 it is included under A. longifolia, but the type of A. laxa is easily recognized 

 amon? these by the figure given in Fossil Plants of the Devonian and U. Silu- 

 rian of Canada, Plate V. fig. 60. 



