320 MR ROBERT KIDSTON ON THE 



II. Those from the Middle Coal Measures, beginning at a depth of 451 yards, and 

 comprising the remaining strata passed through. 



I. The Flora of the Upper Coal Measures. 



Calamites, Suckow. 

 Group I. — Calamitina, Weiss., Steinkohlen Calamarien, part ii. p. 59, 1884. 

 Calamitina (Calamites) varians, Sternb., var. 



Catamites varians, Sternb., Vers., ii. p. 50, pi. xii. 

 Horizon : — At a depth of 440 yards. 



Group III. — S ty 1 OCalamites, Weiss., ibid., p. 119. 

 Stylocalamites (Calamites) Suckowii, Brongt. 



Catamites Suckowii, Brongt., Hist. d. veget. foss., p. 1 24, pi. xiv. fig. 6; pi. xv. figs. 1-6 ; pi. xvi. figs. 2-4 (fig. 1 ?). 

 Horizon : — At a depth of 440 yards. 



Stylocalamites (Calamites) undulatus, Sternb. 



Catamites undulatus, Sternb., Vers., i. fasc. 4, p. xxvi.; Vers., ii. p. 47, pi. i. fig. 2 ; pi. xx. fig. 8. 

 Calamites undulatus, Zeiller, Flore foss. du oassin houiller de Valenciennes, pi. liv. fig. 1, 1886. 

 Calamites undulatus, Brongt., Hist, de veget. foss., p. 137, pi. xvii. figs. 1-4. 



Calamites Suckowii, var. undulatus, Weiss., Steinkohlen Calamarien, part ii. p. 135, pi. xvii. fig. 4, and 

 text figure, p. 135, 1884. 



Remarks. — This plant is regarded by several writers as a distinct species, but by 

 others as a variety of Calamites Suckowii, Brongt. 



Horizon : — At a depth of 440 yards. 



Calamites, sp. 



Remarks. — Several fragments, which, however, cannot be specifically determined, 

 occur at depths of 336 and 411 yards respectively. 



Annularia, Sternb. 

 Annularia stellata, Schloth., sp. 



Casuarinites stellatus, Schloth., Flora d. Vorwelt, p. 32, pi. i. fig. 4. 



Annularia longifolia, Brongt., Prodrome, p. 156. 



Asterophyllites equisetiformis, L. and H. [not Schloth.), Fossil Flora, vol. ii. pi. cxxiv. 



Fruit. — Bruckmannia tuberadata, Sternb., Vers., i. fasc. 4, p. xxix. pi. xlv. fig. 2. 

 Horizons: — At depths of 336 and 411 yards. 



