126 ROYAL SOCIETY OF CANADA 



Horizon and LocalUy. — This form of Annularia, as described in 

 the above diagnosis and in the figures cited, is found abundantly in 

 Beds 2 and 3 of Hartt's section, and very rarely in Bed 1. 



The author of this species calls attention to its resemblance to A. 

 galioides, L, & H., and A. fertilis, Sternb. On reference to Mr. Robert 

 Ividston's Catalogue of Palœozoic Plants of the British Museum, it 

 will be seen that he considers A. go.lioides as probably a small 

 branchlet of A. foliosa, and this latter to be a synonym of A. 

 radiata, Brongt. A. fertilis he considers synonymous with A. 

 steUata, Schloth. Kidston also places under A. stellata the smaller 

 example of Lesquereirs, A. longifolia, Brongt., of the Coal 

 Flora of Pennsylvania (Plate TI, fig. 2), which has a general 

 resemblance to Dawson's A. latifolia, but has fewer leaves in the whorls, 

 and these narrower, but he retains for Dawson's species the latter's 

 name — latifolia. A. stellata then may be looked upon as the Carboni- 

 ferous representative of Dawson's A. latifoVla. 



variety mixor n, var. 



Dawson,, Asterophyllites latifolia Foss. Plants, Dev. and U. Sil. Can. p. 28, 

 pi. V. figs. 50 to 53. 



The examples of A. latifolia Dn., figured by Dawson in his Fossil 

 Plants of the Devonian and TJ. Silurian formations of Canada are of 

 this variety. It is known by its smaller size and more obtuse leaves; 

 also in the terminal shoots the little leaves are spread wide, whereas 

 in the typical form they retain the upward vernation later, and the 

 young leaves have an ascending position, or even cling to the stem 

 where they are near the tip of the shoot or branch. 



The number of leaves in a whorl is the same as in the type — 

 "usually twelve, though fourteen are found, and they become reduced 

 in size as well as in numbers in advancing to the extremities of the 

 branches. 



I did not find the branches of tliis variety present the densely 

 leaved point or cone figured by Sir William, but my examples of thel 

 terminal barren shoots are sparsely leaved, with somewhat distant inter- 

 nodes. The cone-like tips depicted by that author may be undeveloped 

 fertile cones or spikes (see Figs. 55 and 5G — Plants of Devonian and 

 II. Silurian of Canada). 



Horizon and Locality. — The home of this variety is Bed 1 of 

 Hartt's section, Fern Ledges, Lancaster, N.B., where it is quite common. 



