172 
A. macrocarpus, Feistmantel (77), PL i., Pigs. 1 and 2. 
Cladophlebis indica, ibid., PL i., Figs. 3-5. 
1878. Pecopteris australis, Etheridge, Catal., p. 97. 
1883. Alethopteris australis, Tenison-Woods, Proc. Linn. Soc. New South 
Wales, vol. viii., p. 111. 
A. concinna, ibid., p, 112., Pl. ix., Fig. 1. 
1883. Todea australis, Renault, Corns, foss. bot. III., p. 81, PL xi. 
1885. Alethopteris australis, Curran, Proc. Linn. Soc. New South Wales, 
vol. ix., p. 251. 
1887. Alethopteris australis, Johnston, Proc. Roy. Soc. Tasmania, p. 374. 
1888. A. australis, Johnston, Geol. Tasmania, PL xxi., Figs. 5, 6, 8. 
? A. serratifolia, ibid., PL xxiii. 
1890. Alethopteris australis, Feistmantel, Mem. Geol. Surv.. New South Wales, 
p. 109, PL xxvii., Fig. 3. 
A. concinna, ibid., p. 110. 
1892. A. australis, Jack and Etheridge, Geol. Queensland, p. 316. 
1892. Alethopteris australis, Stirling, Reports, p. 11. 
1898. Todea australis, Shirley, Queensland Geol. Surv., p. 17. 
1899. T. australis, Potonie, in Engler and Prantl, p. 378. 
Alethopteris australis, Stirling’s Report, p. 3, PL 2, Fig. 3. 
Frond bipinnate, pinnae oblique, pinnules slightly falcate or straight, 
margin entire or serrate near the apex, attached to the pinna axis by the whole 
of the base, apex acute or slightly obtuse ; a well defined midrib, from which 
dichotomously branched secondary veins are given oh at an acute angle. The 
pinnules reach a length of more than 3 cm., the fertile segments are practically 
identical in shape with the sterile, bearing oblique linear sori parallel to the 
secondary veins. 
In 1845 Morris gave the name Pecopteris australis to a plant from the 
Jerusalem Basin, Tasmania, which he described as follows :—“ Frond bipinnate, 
pinnae oblique, alternate, rather distant; pinnules thin, falcate, and rather 
obtuse, oblique, and somewhat incurved, more or less adnate to the rachis, and 
sometimes decurrent, dilate at the base, or auriculate ; midrib slightly flexuous, 
evanescing towards the apex ; veins oblique, bipinnate, or dichotomous.”* 
Morris pointed out the resemblance of this type of frond to Pecopteris 
Whitbiensis, Brongn. and P. Lindleyana, Royle. 
The name P. Whitbiensis, as I have elsewhere shown,*j* has been applied to 
various forms of bipinnate frond from different mesozoic horizons ; some of 
them are no doubt identical with Cladophlebis denticulata, but many must be 
referred to Todites Williamsoni.% 
Pecopteris Lindleyana, Royle, has been recently re-described by Arber as 
Cladophlebis Roylei§ from the type-specimen in the British Museum. In 1863 
Oldham and Morris described as a new species— Pecopteris indica —specimens 
of bipinnate fronds from the Rajmahal series, Bengal; they recognised the 
close resemblance to Morris’s P. australis, but considered the venation characters 
* Morris (45), p. 248. 
t Seward (00), p. 136. 
j Ibid., p. 88. 
§ Arber (01), p. 548. 
