94 ROYAL SOCIETY OL CANADA 



have been about eight or ten in a whorl, the leaves being short lanceolate 

 oval upward-curved and pointed, they each have a mid-rib faintly marked 

 on the smooth shining surface. The stem as preserved shows no more of 

 solid substance than a single leaf or bract, and bears no leaves between 

 the nodes; but between the upper node and the terminal bud the surface 

 of the stem is visible bearing about five longitudinal ridges each marked 

 along its course by close-placed, low, tubercles arranged spirally on 

 the stem; these may have been the points of attachment of deciduous or 

 rather caducous leaves or soft spines, such as may have at one time 

 adorned the shoot, but fell off before the maturity of the bracts. No 

 hard seeds or nutlets were seen in connection with these bracts. 



Annulaeia acicularis. Dn. 



A specimen lately obtained shows that this plant was of a trailing 

 growth, as a shoot with a number of whorls of leaves is seen to possess 

 adventitious running roots which start from two separate whorls, bear- 

 ing as well leaves of the ordinary type. Appearances would indicate 

 that this plant grew on a muddy flat or in very shallow water, like 

 some modern plants of a trailing habit. The species occurs very com- 

 nxonly in Bed 1 of Hartt's Section (Dadoxylon sandstone) and is not 

 uncommon at other horizons both above and below this. 



Annulaeia latifolia-minor. 



In his first communication regarding this species,^ Sir William 

 Dawson compares this species to A. galeoides L. and H. and in his second 

 to A. foliosus, L. and H. Now Mr. Kidston in his Catalogue of the 

 Fossil Plants of the British Museum, places both these species as syno- 

 nyms of A. radiata.^ Brong't. sp. and we look upon A. latifolia Dn. as 

 the ancient representative of this species. I hesitate, however, to place 

 it under this name, because though we have the species abundantly shown 

 at several horizons in the Little R. plant beds, it shows no tendency to 

 develop to the proportions of A. longifoUa Brong't, which Mr. Kidston 

 says is also a synonym of A. radiata Brong't. sp., but always maintains 

 its smaller size and broader, differently-shaped leaves. A. longifolia 

 Bgt. var. is also found in the Little E. Group, but at a lower horizon and 

 does not exhibit examples passing to A. latifolia, Dn. 



Sir Wm. Dawson states that some of Mr. Hartt's specimens have 

 this and the preceding species {A. acicularis) associated in such a man- 

 ner as to suggest the suspicion that they may have been portions of one 

 species. With the present author the suspicion, however, does not carry 



1 Jour. Geol. Soc, XVIII, p. 311. PI. XIII. fig. 17. 



2 Cat. Pal. Plants, pp. 43 and 44. 



