4 MR, NEWELL ARBER ON THE CLARKE COLLECTION _[ Feb. 1902, 
Equisetales. 
PuytiorHsca austRaLis, Brongniart.! 
Woodwardian Mus. Camb., Foreign Plant Coll. No. 12 (figured). 
Localit y—Clarke’s Hill, near Cobbity. 
1847. Phyllotheca Hookeri, McCoy (47) p. 157 & pl. xi, fig. 4. 
The locality from which this fossil was obtained has been dis-— 
puted. Clarke,? in 1861, says that it was labelled ‘ Clarke’s Hill’ 
vy mistake ; yet in 1878 * the same author gives Clarke’s Hill as the 
locality, without expressing any doubt on the subject. The rock is 
a greyish-brown sandstone, bearing a printed label ‘ Clarke’s Hill,’ 
much resembling other specimens from that locality, and is quite 
distinct from those brought from Mulubimba and elsewhere. There 
is, therefore, little doubt that it is correctly labelled as to locality. 
The specimen consists of two or three unbranched stems, of 
which McCoy figures one, which is 24 inches long, and } inch 
across. The nodes are slightly constricted, and the internodes 
(4 inch long) bear faintly marked opposite, and longitudinally 
disposed, furrows. In one instance the basal leaf-sheath (3 inch 
long) is preserved, from which free linear segments, 15 inches long, 
are given off. The sheath appears to be somewhat lax, and is half 
as long as the internode. ‘The other fragments are similar portions 
of stems, but without leaves, one being 4 inches long, and with nodes. 
quite an inch distant. 
The reasons for placing this specimen under Brongniart’s 
specific name will be fully discussed in dealing with the Newcastle 
specimens. 
Ginkgoales. 
Barpra, Braun, 1848. 
In Graf zu Miinster’s ‘ Beitr. zur Petrefactenkunde’ pt. vi, p. 20. 
BaIlgERA MULTIFIDA, Fontaine. 
Woodwardian Mus. Camb., Foreign Plant Coll. No. 56. 
Localit y.—Clarke’s Hill, Cobbity. 
1883. Baiera multifida, Fontaine, U.S. Geol. Surv. Monogr. vol. vi, pl. xlv 
(double), fig. 3, pl. xlvi & pl. xlvii, figs. 1-2. i 
1886. Jeanpaulia (?) palmata, Ratte, Proc. Linn. Soc. N. S. Wales, ser. 2, vol. i,. 4 
pp. 1078-81. 
1887. Salishuria palmata, Ratte, ibid. vol. 11, p. 187 & pl. xvii. 
1890. Baiera palmata, Feistmantel (90) p. 158. 
The last specimen from Clarke’s Hill to be mentioned is a 
fragment, which is almost certainly identical with the fine plant 
from the Wianamatta Shales, described by Ratte in 1886, and 
first referred by him to the genus Jeanpaulia, and afterwards 
to Salisburia. Unfortunately, neither of these generic terms can 
stand: Salisburia is a synonym of Ginkgo, and Jeanpaulia is now — 
1 For other literature, see p. 14. 
2 Clarke (61) p. 358. . 3 Clarke (78) pp. 123-24. 
