FOSSIL FLORA OF THE STAFFORDSHIRE COAL FIELDS. 119 



Calamites ramosus Artis. 



1825. Calamites ramosus, Artis, Antedil. Phyt., pi. ii. 



Note. — Frequent. 

 Horizons and Localities. — 



Roof of Brooch Coal : Oldbury ; Shut End, near Kingswinford. 



Brooch Binds Ironstone : Pensnett ; Himley. 



Ten-foot Ironstone Measures : Clayscroft Openwork, Coseley, near Dudley. 



Roof of Fireclay Coal : Doulton's Clay Pit, Netherton, near Dudley. 



Below Bottom Coal : Ruiton, near Sedgley. 



Calamites Britannicus Weiss. 



1888. Eucalamites {Calamites) Britannicus, Weiss, Ann. and Mag. Nat. Hist., ser. 6, vol. ii. p. 131, 



pi. vii. 

 1911. Calamites Britannicus, Jongmans, Anleitung, p. 123, fig. 118. 



Note. — Very rare. Only a single specimen of this species has been found by 

 Mr C. Beale in 1888. 



Geinitz unites this species with his Calamitina oculata, but I believe the two 

 species are quite distinct.* 



Horizon and Locality. — Above Thick Coal: Shut End near Kingswinford. 



Calamites sp. : Rhizomatic tuber. 

 PL IX. fig. 2. 



Remarks. — A rhizomatic tuber of -a Catamite is shown on PL IX. fig. 2, natural size. 

 These tuberous structures, though well known to occur on some species of Equisetum, 

 have not been previously known to occur on Calamites, as far as I am aware. The 

 specimen, which is preserved in an ironstone nodule, shows an inflation of the rhizome 

 about 2 '50 cm. long and 1 cm. wide at its centre. The tuber consists of three 

 internodes, measuring respectively 1'30 cm., 0*70 cm., and 0'50 cm., of which the 

 centre internode is the widest ; the two end ones narrow into the rhizome, which, 

 where they join it, is about 3 mm. wide. At one end of the fossil only one internode 

 of the rhizome is preserved, which is apparently incomplete, but measures 1 cm. in 

 length. At the other end the rhizome decreases quickly in width and is much 

 thinner, and contains seven very short internodes. Both the tuber and rhizome are 

 distinctly ribbed, and rootlets are given off from all the nodes. 



This interesting specimen was collected by Mr H. W. Hughes. 



Horizon and Locality. — Ten-foot Ironstone Measures: Clayscroft Openwork, 

 Coseley, near Dudley. 



* Geinitz, " Die Calainarien der Steinkoblen-Formation u. d. Roethl. in Dresdener Museum," Mitt. Jcongl. Miner.- 

 Geol. u. Praehis. Museum im Dresden, Vierzehntes Heft, p. 12, pi. i. figs. 1, 2, 1898. 



