IN THE LOWER OLD RED SANDSTONE OE SCOTLAND. 



217 



In the foregoing notes we have endeavoured to give a short and con- 

 cise sketch of the literature of the Old-Red plants of Scotland. "We 

 have not thought it necessary to refer to the general accounts to he 

 found in various manuals. 



3. Description of the Specimens. — Plant-remains in various states 

 of preservation, but chiefly of the most fragmentary nature, have been 

 met with by one of us [B,. L. J.] at no less than twelve localities ; 

 and specimens have also been collected by Mr. A. Macconochie, one of 

 the fossil-collectors of the Geological Survey. Those to which the 

 greatest interest is attached, now to be described, and fortunately the 

 best-preserved, occur in a fine-grained blue-grey micaceous sandstone 

 near Braendam House, near Callander (group C. of the following 

 Table, p. 220). 



The specimens, as we now find them, appear as elongated flattened 

 stems, on an average about one inch wide, and are either casts in the 



Fig. 1. — Psilophylon(y), sp. 



Fig. 2. — Psilophyton (?), sp. 



Portion of a simple stem, with the 

 cellular tissue destroyed*at one 

 end, leaving the vascular axis, 

 from the Quarry near Braendam 

 House. Callander. 



Portion of a stem showing bifurca- 

 tion, from the south-west comer 

 of Muir Plantation, near Braen- 

 dam House, Callander. 



