EOCENE EERNS. 
39 
Some difference is apparent between the angles of the venation of the young 
pinnse attached to the plant and those drawn on PI. X, figs. 9, 10, which are more 
acute. 
The original specimen, which should be preserved in the Jermyn Street Museum, is 
not now to be found there ; and our identification rests, therefore, partly with Heer, who 
states that they are the same. 
It would be better, perhaps, that the species should be described under the name of 
GoNioPTERis than under that of Phegopteris, as at page 38. 
GoNioPTERis STiRiACA {Onger). 
PoLYPODiTES STIRIACUS, linger. Chloris Protogaea, p. 121, pi. xxxvi. 1847. 
LASTRiEA STIRIACA, Heer. Flor. Tert. Helv., vol. i, p. 31, pi. vi and vii ; vol. iii, 
p. 151, pi. cxliii. 1859. 
— HELVETICA, Hear. Ibid., p. 33, pi. vi, fig. 2 ; vol. iii, p. 151, pi. cxliii, figs, 
2—5. 1859. 
GONIOPTERIS STIRIACA,^. BrauH. Zeitschrift Geolog. Gesellsch., vol. iv, p. 556. 1852. 
— — Schimper. Pal. Vegetale, vol. i, p. 547. 1869. 
Lastr^a STIRIACA, Heer. Flora of Bovey, p. 28, pi. v, figs. 12 — 15. 1861. 
— — Gaudinet Strozzi. Contributions a la Flore Foss. Italienne, vol. ii, 
p. 32, pi. i, fig. 2. 1859. 
Phegopteris stiriaca, Ettingsh. Flora of Bilin, p. 16, pi. ii, f. 16 — 18. 1866. 
G. fronde pinnata, pinnis linear ihus, prcdongis, inferioribus grosse crenatis serratisve, 
superioribus argute serratis vel serrulatis ; nervatione Goniopteridis Aspidii, nervo prhuario 
valido prominente, redo, nervis secundariis sub angulis 50 — 65° orientibus, tenuibus, sub- 
rectis vel paullo arcuatis, nervis tertiariis in pinnis inferioribus plermn que 6 — 7, inpimiis 
superioribus plenimque 4 — 5, curvatis, subparallelis, angulo acuto egredientibus. Soris 
rotundatis biseriatis. 
Middle Bagshot, Bovey Tracey, 
This Fern has not, we believe, been met with in England elsewhere than at Bovey 
Tracey, where it was formerly found in abundance. The pinnse are usually attached to 
the rachis, and the sori are frequently preserved. The stems and circinate vernation 
placed with Pecopteris lignitum by Heer ^ belong, in all probability, to this species.^ 
We have no hesitation in uniting Lastrcea helvetica, Heer, with the present species. 
The former was first founded upon most imperfect fragments, and separated upon the 
supposition that it was more closely and sharply serrated, and possessed fewer ternary 
veins. The much more perfect specimen figured in the third volume of the ' Flor. Tert. 
1 'Flora of Bovey,' p. 31. 
2 See description of Osinunda llgnituniy p. ^50. 
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