RADSTOCK SERIES OF THE SOMERSET AND BRISTOL COAL FIELD. 3(31 



Neuropteris rarinervis, Bunbury. 



Neuropteris rarinervis, Bunbury, Quart. Jour. Geol. Soc, vol. iii. p. 425, pi. xxii. 

 Neuropteris rarinervis, Lesqx., Goal Flora of Pennsyl., p. 109, pi. xv. figs. 2-5. 

 Neuropteris rarinervis, Zeiller, Bull. soc. geol. de France, 3 e ser., vol. xii. p. 197. 

 Neuropteris rarinervis, Kidston, Catal. Palceoz. Plants, p. 91. 



Remarks. — Though occurring at most of the localities visited, this fern is 

 nowhere plentiful in the Raclstock Coal Field. 



Localities : — Kadstock ; Camerton ; Wellsway ; Upper Conygre ; Lower 

 Conygre. 



Neuropteris flmbriata, Lesqx. 

 Plate XXI. figs. 3-5. 



Neuropteris fimbriata, Lesqx., Geol. Report of Ulin., vol. ii. p. 430; vol. iv. p. 384, pi. vi. fig. 4. 

 Neuropteris flmbriata, Lesqx., Coal Flora of Pennsyl., vol. i. p. 81, pi. v. figs. 1-6. 



Remarks. — A few isolated pinnules have been met with which may perhaps 

 be referred to Neur. fimbriata, Lesqx. These are shown on PI. XXI. figs. 3-5. 



In the specimen given at fig. 5 the veins are a little finer than in those of 

 figs. 3 and 4, and it may possibly be a small specimen of Neuropteris (Cyclopteris) 

 lacerata, Heer.* 



The other two figures, however, appear to agree more closely with 

 Lesquereux's Neur. fimbriata, but Heer's and Lesquereux's species ap- 

 proach very closely to each other, and the distinctive characters are not very 

 prominent. 



The fimbriation of the pinnules Js a natural character, and not produced by 

 an accidental flaying out of the tissue. 



Localities : — Upper Conygre ; Camerton ; Wellsway. 



Dictyopteris, Gutbier, 1835. Abdrucke und Versteinerungen des Zwickauer 



Scliivarzkoldengebirges, p. 62. 



Dictyopteris Miinsteri, Eichwald, sp. 

 Plate XXL fig. 6. 



Odontopteris Miinsteri, Eichwald, Die Urwelt Russlands, Heft i. p. 87, pi. iii. fig. 2, 1840. 



Dictyopteris Miinsteri, Schimper, Traite d. paleont. veget., vol. i. p. 618, 1869. 



DictyopAeris Miinsteri, Zeiller, Bidl. soc. geol. de France, 3 e ser., p. 197, vol. xii.; Etudes d. Gites 



Mineraux de la France ; Bassin houil. d. Valenciennes, Descr. d. I. Flore Foss., pi. xlix. 



figs. 1-5, 1886. 

 Dictyopteris Hoffmanni, Romer, PalwontograpMca, vol. ix. p. 29, pi. vii. fig. 3, 1862. 

 Dictyopteris Hoffmanni, Schimper, Traite d. paleont. veget., vol. i. p. 619. 



Description. — Frond tripinnate, secondary pinnae alternate, lanceolate; 

 pinnules alternate, from shortly oval to oblong in form; upper pinnules united 



* Flora foss. Helvetia, p. 17, pi. vi. fig. 7. 



