47 
4. Tseniopteris Thomsoniana sp. nov. Plate VI, fig. 4 ; Plate VIII, figs. 4, 7. 
1913. Tceniopteris Daintreei Arber, Proc. Roy. Soc. London, ser. B, vol. lxxxvi, p. 346, 
pi. viii, fig. 5. 
Diagnosis .—Frond rather small, spathulate, broadest at apex, 3 cm. to 7 cm. or 
more in length, and up to 2 cm. broad. Apex broadly rounded. Median nerve 
fairly strong ; lateral nerves fine, fairly close, arising at right angles to the median 
nerve, for the most part simple, but not infrequently forked near the midrib, and 
occasionally between the median nerve and the margin. 
Description of the Specimens. —Two leaves from the Clent Hills are figured on 
Plate VIII, figs. 4 and 7, both natural size. A likewise incomplete leaf from Mount 
Potts is. figured, twice enlarged, on Plate VI, fig. 4. This has a length of over 6 cm. 
Remarks. I have previously recorded this species as Tceniopteris Daintreei McCoy, 
but I am now of the opinion that it is a distinct species, which I propose to name 
T. Thomsoniana, in honour of Dr. J. Allan Thomson, F.G.S., of New Zealand. This 
species is particularly characterized by the relatively small size of the leaf, the spathu¬ 
late form, and the comparatively infrequent dichotomy of the lateral nerves. Of 
the Australian Taenipoterids, it appears to approach nearest to T. lentriculiforme 
(Ether.)(1), which it somewhat resembles as regards the lateral nervation, though in 
the New Zealand plant the nerves appear to dichotomize more frequently. It is, 
however, distinguished by the form of the frond. 
Type. —-British Museum (Natural History). 
Occurrence. —Mount Potts (Rhsetic) ; Clent Hills (Rhaetic). 
5. Taeniopteris vittata Brongniart. Plate IV, fig. 4 ; Plate VI, figs. 2, 3. 
1822. “ Blattstuch einer Scitaminea ” Sternberg, Vers. Darstell. Flora Vorwelt, Heft iii, 
p. 37, pi. xxxvii, fig. 2. 
1828. Tceniopteris vittata Brongniart, Prodr. Hist. Veget. Foss., p. 62. 
1831-32. Tceniopteris vittata Brongniart, Hist. Veget. Foss., p. 263, pi. lxxxii, figs. 1-4. 
1829. Scolopendriuni solitarium Phillips, Geol. Yorks., 1st ed., p. 147, pi. viii, fig. 5. 
1833. Tceniopteris vittata Lindley and Hutton, Foss. Flora, vol. i, pi. lxii. 
1837. Tceniopteris vittata Lindley and Hutton, ibid., vol. iii, pi. clxxvi b. 
1865. Tceniopteris vittata Eichwald, Leth, Ross., vol. ii, p. 24, pi. ii, fig. 5. 
1869. Oleandridium vittatum Schimper, Traite. Pal. Veget., vol. i, p. 607. 
1873. Tceniopteris vittata Saporta, Pal. Franc-., vol. i, p. 444, pi. lxiv, figs. 1-5. 
1875. Tceniopteris vittata Phillips, Geol. Yorks., 3rd ed., p. 205, pi. viii, fig. 5. 
1876. Oleandridium vittatum Feistmantel, Foss. Flora Gondw. Syst. (Pal. Lndica), vol. ii, 
pt. i, p. 15, pi. 1, fig. 5. 
1876. Cf. Tceniopteris mareyesiaca Geinitz, Palceontogr., Suppl. iii, Lief, ii (2), p. 9, pi. ii, figs. 4-3. 
1887. Cf. Oleandridium tenuinerve Schenk, Bibl. Hot. (Uhlworm and Haenlein), Heft vi, 
p. 4, pi. v, fig. 20a. 
1890. Oleandridium vittatum Schimper, in Zittel, Handb. Pal., Abth. ii, Palaeophyt., p. 133, fig. 107. 
1897. ? Oleandridium vittatum Bartholin, Danmarks Geol. Undersog. 2 Raekke, No. 7, p. 15, pi. —, 
fig. 8. 
1900. Tceniopteris vittata Seward, Jurass. Flora, vol. i, p. 157, pi. xvi, fig. 1. 
1910. Tceniopteris spathulata Krystofovic, Mem. Com. Geol. St. Petersbourg, N.S., Livr. 56, 
p. 9, pi. ii, figs. 2, 2a. 
1911. Tceniopteris vittata Thomas, ibid., N.S., Livr. 71, pp. 23, 71, pi. iv. figs. 2, 3. 
1911. Tceniopteris vittata Seward, ibid., Livr. 75, pp. 16, 45, pi. iii, figs. 30, 31. 
Diagnosis. —Leaf simple, broadly or narrowly linear, ribbon-shaped or elliptical, 
contracted somewhat at the base and apex, up to 20 cm. or more in length, 
and from 7 mm. to 3 cm. in width. Lateral nerves fine, close, arising at right 
(1) Etheridge 1894 2 ), p. 49, pi. viii. 
