388 PROCEEDINGS OF SECTION C. 
springing at an acute angle, ribbonlike, contracted gradually to- 
wards the apex ; midrib strong, lateral veins springing at an acute 
angle, then incurved and running a little obliquely towards the 
margin, some simple, others forking at the point where the curva- 
ture commences ; sporangia arranged in close series to the margin, 
rounded, opening by a perpendicular slit (?) as in the genus Angi- 
opteris, or by a pore (?), as in Dancea.” —Schimper.* 
Fertile fronds have been found in the Lower Keuper, sterile 
in the Trias and Lias. One species, D. Hughesi, Feist., is parti- 
cularly abundant in the Rajmahal beds of India. 
From Australia no species has been described as yet, but some 
specimens from the Narrabeen beds of Turrimetta Head may 
prove, on further investigation, to be new. In connection with 
this New South Wales form and the Indian D. Hughesi, the great 
similarity in the form of the pinnules and the venation to some 
of the lanceolate-pinnuled species of Thinnfeldia is remarkable, the 
sole tangible difference being the greater size of Dancwopsis. I 
venture to think, in contradistinction to the late Professor Feist- 
mantel, that the relationship between the Indian species, even as 
proved by his own figures,—which show at the basal portion of the 
frond small lobate pinnules, similar in every respect to those of 
Thinnfeldia,—is much closer, in the absence of fructification, to 
Thinnfeldia than to Heer’s Daneopsis. This matter will be dis- 
cussed at greater length in the description of the Narrabeen plants. 
Phyllopteris, Brongniart. 
(Tab. gen. Veg. Foss., 1849, p. 22.) 
Sp. char.—“ Fronds or pinne of the fronds more or less lanceo- 
late, margin entire, midrib becoming thin towards the apex ; 
secondary nerves springing from the midrib continued in an 
oblique direction, curved, often furcate and anastomosing with 
one another.—Saporta.” t 
By many authors species of this genus have been referred to 
other genera, mainly Sagenopteris ; but, in opposition to this, 
Saporta says: “The obliquity and also the curvature of the 
secondary veins, which are very numerous and branched and 
dichotomous, but not anastomosing so as to form a net structure, 
distinguishes the genus Phyllopteris from ZLeniopteris, on one 
hand, and Sagenopteris on the other.” t 
Range—Rhetiec—Oolite. One species occurs in the Leigh’s 
Creek beds of South Australia, and also in the Ipswich Formation 
of Queensland. 
* Zittel’s Pal., Paleophytologie (French Trans.), p. 86. 
Tt Saporta, Pal. Franc Pl. Jurassiques, 1878, i, p. 448. 
$ Op cit. p. 449. 
