. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. The Fossil Flora of the Upper Karroo Beds. 321 Cladophlebis nebbensis (Brongniart). Text-figure 2. 1837. Pecopteris nebbensis, Brongniart, Hist. Veget. foss., vol. i, p. 299, pi. xcviii, fig. 3. 1876. Cladophlebis nebbensis, Nathorst, K. Vet. Akad. Handl., Bd. 14, No. 3, p. 16, pi. ii, fig. 1-6 ; pi. iii, fig. 1-3. 1889. Alethopteris sp. (cf. Asplenium nebbense), Feistmantel, Karroo Formation, p. 68, pi. ii, figs. 12, 12a. 1903. Cladophlebis nebbensis, Zeiller, Flore foss. Tonkin, p. 45, pi. iv, figs
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. The Fossil Flora of the Upper Karroo Beds. 321 Cladophlebis nebbensis (Brongniart). Text-figure 2. 1837. Pecopteris nebbensis, Brongniart, Hist. Veget. foss., vol. i, p. 299, pi. xcviii, fig. 3. 1876. Cladophlebis nebbensis, Nathorst, K. Vet. Akad. Handl., Bd. 14, No. 3, p. 16, pi. ii, fig. 1-6 ; pi. iii, fig. 1-3. 1889. Alethopteris sp. (cf. Asplenium nebbense), Feistmantel, Karroo Formation, p. 68, pi. ii, figs. 12, 12a. 1903. Cladophlebis nebbensis, Zeiller, Flore foss. Tonkin, p. 45, pi. iv, figs. 2-4. 1905. Cladophlebis nebbensis, Yokoyama, Journ. Sci. Imp. Univ. Tokyo, vol. XX, pt. 5, p. 3, pi. i, figs. 1-3. A fragment from Indwe liad in 1889 been described by Feistmantel as probably belonging to this interesting species, in whicb lie was right, for the discovery of larger portions of a frond, 8646, unfor- tunately somewhat crushed and broken, at Tarka near Indwe, enables this plant to be identified with certainty. This shows part of a bipinnate frond with stout, finely striated rachis, centrally grooved, and bearing pinnae set at a wide angle. The pinnules have nearly parallel margins and a bluntly pointed apex, and are 8-9 mm. long and about 3 mm. broad, attached by the whole of the base, and curving gently forward towards the apex of the pinna. The strong secondary veins have produced a kind of wrinkling, which causes the margins to appear slightly indented, though they are actually smooth. With some difiiculty it is possible to make out that the lower basal pinnule is somewhat smaller, and the upper basal one somewhat larger, than the remain- ing pinnules. The primary vein is slightly decurrent, while the secondary veins are given ofi abruptly therefrom at a fairly wide angle, and only fork once, fig. 2. These several characters, particularly the singly dichotomising secondary veins and the disproportionate size of the two basal pin- nules, suffice to establish t
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