KILMARNOCK, GALSTON, AND KILWINNING COAL FIELDS, AYRSHIRE. 31] 



Catamites (Calamitina) varians inconstans,Weiss, ifo"c?.,vol.ii.pp. B2 and 69, pi. xvia. figs. 7, 8; pi. xxv. fig. 2. 

 Calamites {Calamitina) varians inconstans, Kidston, Trans. Roy. Soc. Edin., vol. xxxv. part ii. p. 388, 

 pi. i. fig. 1. 

 (?) Calamites vertieillatus, Williamson (not L and H.), Phil. Trans., 1874, p. 66, pi. vii. fig. 45. 

 Cyclocladia major, Feistmantel (in part), Vers. d. b'olim. Ablager, part i. p. 96, pi. i. fig. 8. 



Locality. — No. 3 Pit, Springhill, Crosshouse, near Kilmarnock. 

 Horizon. — Shale over Major Coal. 



Calamitina verticillata, L. and H., sp. 



(Plate IV. fig. 18.) 



Calamites vertieillatus, L. and H., Fossil Flora, vol. ii. p. 159, pi. exxxix. 



Calamitina verticillata, Kidston, Trans. York. Nat. Union, part xiv., 1890, p. 17. 



Calamophyllites vertieillatus, Zeiller, Flore foss. d. bassin houil. d. Valenciennes, p. 360, pi. lvii. fig. 2. 



Description: — Branch scars periodic, oblong-quadrate, approximate laterally, cicatrice 

 of scar slightly below the middle, outer surface of bark feebly ribbed ; the ribs almost 

 Hat, with a very slight dividing furrow ; leaf-scars rounded- quadrate, catenulate. 



Remarks. — This species, described by Lindley and Htjtton from Hound Hill, near 

 Pontefract, Yorkshire (Middle Coal Measures), is very rare in Britain, the example figured 

 being the only specimen I have yet seen. The branch-scars are oblong-quadrate, and 

 from the point of attachment of the appendicular organ there extend a few radiating 

 ridges. Although I use the term " branch -scars" to these discs, it is quite possible that 

 they bore cones ; but on this point there is no data. The flat ribs do not alternate 

 regularly. At the nodes many of them continue straight on, to the opposite side of the 

 leaf-scar, and they are seen to continue over the large discs where the pressure of the 

 base of the attached organ has not been sufficient to obliterate them. The bark is still 

 preserved on the specimen. The discs are formed by the pressure of the base of the 

 appendicular branch or organ on the back, which was attached to the almost central cicatrice. 



Zeiller notes this species from Anzin in the north of France. 



I do not think that the plant figured by Ettingshausen as Calamites vertieillatus 

 can possibly be referred to this species.* 



The Kilmarnock specimen was communicated to me by Mr Eorrison. 



Locality. — No. 3 Pit, Springhill, Crosshouse. 

 Horizon. — Shale over Major Coal. 



Calamitina approximata, Brongt., sp. (in part). 

 (Plate II. figs. 5, 6.) 



Calamites approximatus, Brongt. {in part), Hist. d. veget. foss., p. 133, pi. xxiv. figs. 2, 3 (? figs. 4, 5). 

 Calamites approximatus, Geinitz (in part), Vers. d. Steinlcf. in Sachsen, p. 7, pi. xi. fig. 5 ; pi. xii. fig. 3. 

 Calamitina approximata, Weiss, ISteirikolilen Calamarien, part ii. p. 81, pi. xxv. fig 1. 



* Haidinger's Naturwissensch., vol. iv. Abth. i., 1851, p. 68, pi. viii. fig. 1 



