114 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



have been discovered by which the specimens can be referred to 

 their respective parent genera. 



One of my specimens (No. 2547) is a termination very similar 

 in size and character to that figured by Goldenberg on his PI. 

 XII., fig. 3 (Stigmaria rimosa, Goldenberg). It was collected at 

 Woodyett Pit, Denny, Stirlingshire (Hor. Carboniferous Lime- 

 stone Series). 



The other British species, which I have named Stigmariopsis 

 anglica, is a smaller form than Stigmariopsis rimosa, Golden- 

 berg sp., and all my specimens of it have been collected 

 at Monckton Main Colliery, Barnsley, Yorkshire, from the 

 Barnsley Thick Coal (Middle Coal Measures), by Mr. W. 

 Hemingway, to whom I have been so often indebted for much 

 kind assistance in my study of the Carboniferous Flora. 



The Monckton Main specimens have their outer surface orna- 

 mented in a similar manner to that figured by Solms-Laubach, 1 

 but the rootlet scars are generally more closely placed on the 

 Yorkshire examples, though their distance apart varies much 

 according to the age of the specimens. On a small example, 

 evidently near the growing point of the rhizome, the rootlet scars 

 are very small, about 1 mm. in diameter and 2 mm. distant from 

 each other (No. 2337) ; in another specimen, portion of a much 

 larger example, the rootlet scars are 2 mm. in diameter, and 1*2 

 cm. apart (No. 2342). These forms are connected by a series of 

 specimens showing intermediate sizes. Some of the specimens 

 show a bifurcation, and one a termination with its attached 

 rootlets (No. 2602). This latter, 6*5 cm. long and about 2*75 

 cm. across at its widest part, terminates in a blunt point. None 

 of the attached rootlets appear to show their complete length. 

 The longest is about 7 cm. long, and they are from 1 to 2 mm. 

 broad, with a narrow central band, caused by the vascular 

 strand. One rootlet, on the back of the specimen, shows a 

 bifurcation. The rootlets are bent forward in the direction of 

 the point, but do not close round it as they do on the Stigmaria 

 termination described by Solms-Laubach. 2 Possibly the specimen 

 may be one of the " tap-roots," and not a termination of one of 



1 Uber Stigmariopsis, PI. II. , fig. 2. 

 3 Fossil Botany, p. 269. 



