from the Lanarkshire Coal-field. 487 



men of this species, with narrow ribs and proportionately 

 small leaf-scars. The leaf-scars are more distant than 

 figured by Brongniart ; but in this character the plant varies 

 much. 



Locality. Bent Colliery, about 1^ mile E. of Both well. 



Sigillaria, sp. 



Remarks. I place here a small decorticated example of a 

 Sigillaria, which, in the absence of the outer surface of the 

 stem, does not afford sufficient characters for a specific identi- 

 fication. It is the Sigillaria (Syringodendron) cyclostigma, 

 Brongn. (Hist. d. veget. foss. pi. clxvi. fig. 3), of which, 

 however, nothing more can be said than that it is a decorti- 

 cated condition of a Sigillaria. 



Locality. Baillieston. 



Lycopod Spores. 



Remarks. These are probably the spores of Lepidodendron 

 or Sigillaria. They are about ■£§ inch in diameter, and 

 apparently belong to Reinsch's group Triletes*. These little 

 spores almost entirely cover the surface of some small slabs, 

 and are restricted to the " parting " of the stone. 



Locality. Blaes at old pit, near Airdrie. 



Stigmakia, Brongniart. 

 Stigmaria ficoides } Brongniart. 



Stigmaria Jicoides, Brongniart, Class, d. veget. foss. p. 9, pi. i. fig. 7 ; 



Lindley & Hutton, Fossil Flora, vol. i. pis. xxxi.-vi. 

 Stigmariajicoides (andvars.), Goppert, Gatt. d. foss. Pflanzen, Lief. 1,2, 



p. 13, pis. viii.-xvi. 



Remarks. Stigmarice, the roots of Lepidodendron and Sigil- 

 laria, are common throughout the whole of the Coal-measures. 

 The specimen from Airdrie shows a transition from the Lepi- 

 dodendroid leaf-scar to the Stigmarian root-scar. The Stig- 

 marian vascular scar is here surrounded by a " field," similar 

 to that which surrounds the vascular impression of the Lepi- 

 dodendroid leaf-scar. 



Stigmaria jicoides , var. reticulata (Goppert), has also been 

 met with. 



Localities. Common throughout the whole district. Stigm. 

 jicoides, var. reticulata : above oil-shales, Airdrie. 



* ' Micro-Paleeo-Phytologia Formationis Carboniferae,' vol. i. p. 1, 

 1884. (Vols. i. and ii. Erlangen, Bavaria, 1884. Many hundreds of these 

 organisms are figured in this work.) 



