204 
A. B. Walkow, l^.Sc. 
CYCADALES. 
Ptilophyilum pecten (i^iiillips). 
(IMatt* II.. %. 0.) 
Spccim(‘iis n‘f(‘]T(*(l to J^tilojjhyllum pccien are (juite .‘Similar to tlu‘ many 
iimired examples of' tliis spi'cies which is widely distributed in rocks of flurassir 
a^e. Tlu'v are i>reser\-e<l as im]>ressions on a fine-grained, h'rruginous mica- 
ct'ous sandstotie, and are not likely to furnish any details of cuticnlar structuiv. 
It therefore sedans only possibk' to reft'r them to P. pecten (s('C S(‘war<l, 1917, p. 
524). In Kastern Australia tliis s})ecies occurs in the Jurassic rocks at Stewart's 
Creek. Stanwell. Queensland, and in tlu‘ Cretaceous rocks of the Maryl.)orough 
Series and the Ibirrum Series. 
CONIFERALES. 
Elatocladus plana (Feistinaritel). 
(Plate II., fig. 7.) 
Several specimens may be referretl to Elatocladus plana Feistmantel. a 
common Jurassic type, of which Seward (1919, p. 431) has figured two speci- 
mens. The species has also been figuretl from Jm-assic and Cretaceous rocks 
in Queensland (Walkom, 1917, PI. 9, fig. 4 ; 1919. PI. 2. figs. 4, 5), 
The Western Australian specimens ha\-e linear leaves about 1-5 cm. 
long, with a distinct midrib. 
LIST OF REFERENCES. 
Brown, R. W., 1939 : Some American Fossil Plants belonging to the Isoetales. J. Wash- 
ington 
Acad. ScL. 29 (6), 261-269. 
Pfeiffer, Norma E., 1922 : Monograph of the Isoetaceae. Ann. Missouri 
Bo(. Gard., 
X (2). 
79-232. 
Seward, A. 
C.— 
1904 ; 
On a Collection of Jurassic Plants from \'ictoria. liec. Geol. 
Sure. Vicf.. 
i (3). 
p. 155. 
1910 : 
Fossil Plants, ^'ol. 2. Caml)ridge Univ. Press. 
1917 : 
Fossil Plants. Vol. 3. Cambridge Univ. Press. 
1919 : 
Fossil Plants. \o\. 4. Cambridge Univ. Press. 
Walkom, A. B. — 
1917 : 
Jlesozoic Floras of Queensland. Part i. (concluded). Qd. 
Geol. Sure. 
Paid. 
259. 
1919 ; Mesozoic Floras of Queensland. Parts iii and iv. Qd. (Jeol. Sure. Pub!. 203. 
1921 : Mesozoic Floras of New South Wales. Part i. Mem. GeoL Syn\ A . N. II a/eN. 
Palaeontology No. 12. 
KXPLANATION OF PhATKS. 
Plato 1. 
Isoetites elegans, n. sp. 
Fig. 1. Isoetites elegans. n. sp. Specimen No. 16687. xj. 
Fig. 2. Group of sporangia. Specimen No. 16683. X3. 
Fig. 3. Sporangium in position on basal portion of a leaf. Specimen No. 16682. X i. 
Fig. 4. Single sporangium. Specimen No. 16711. X4. 
Fig. .5. Poi-tion of figure 4 enlarged to show triradiate ridges on megaspoves. x 14. 
