22 MR. NEWELL ARBER ON THE CLARKE COLLECTION _|{ Feb. 1902, 
assigning the Queensland plant to Dawson’s genus Anezmites, and in 
this I fully agree with him. Both the Australian specimens present 
many points of similarity in type to the British Ancimites adian- 
toides (L. & H.), referred by Mr. Kidston’ to the genus Sphenopteris, 
and also to Aneimites valida (Dawson). I have therefore referred 
the Cambridge plant to this genus, at the same time instituting a 
comparison with Neuropteris (Neuropteridium) of Schimper.? I pro- 
pose to transfer Mr. Ktheridge’s plant to McCoy’s species, as the 
older determination of what I believe to be identical plants. 
McCoy’s specimen consists of a schist-like, flaggy rock crowded 
with portions of the pinnules of this fern. ‘The part figured by 
McCoy consists of a stout rhachis bearing three large and fairly 
complete pinnules on one side, and two, less perfectly preserved, on 
the other. It is 12 inches long, and 1 inch across. The best 
preserved pinnules are £ inch long, and 3 inch across, 
Equisetales. 
PHYLLOTHECA. 
PHYLLOTHECA DELIQUESCENS (Goepp.). (PI. I, fig. 3.) 
Woodwardian Mus, Camb., Foreign Plant Coll. Nos. 43 & 44. 
(For synonyms, see p. 17.) 
McCoy® says that one of his species (Ph. Hooker2) is common in 
the siliceous schists of Arowa. There are two specimens of Phyllo- 
theca in the collection labelled ‘Arowa,’ which seem to’ be identical 
with Ph. deliquescens (Goepp.). Neither of these was figured by 
McCoy, although the smaller closely resembles that figured (pl. x1, 
fig. 7) from Mulubimba. It consists of a fragment, 27 inches long 
and 2 inch wide, showing a node and portions of two internodes. 
The internodes bear fairly sharp longitudinal ridges, opposite the 
nodes, and separated by shallow grooves, about =4, inch across. The 
specimen is compressed, and shows about eighteen ridges on one 
side, and seventeen on the other. 
The larger specimen (No. 44, Pl. I, fig. 3) is 3 inches long, and 
17 inches broad. It is precisely similar to the smaller specimen, 
except in size. About twenty-three ridges are shown on one side. 
As in the examples of this species from Mulubimba, neither of the 
specimens shows leaves or branches, and they are in all probability 
of the nature of pith-casts. It is therefore possible, if these rocks at 
Arowa should eventually prove to be of Lower Carboniferous age, 
that they may have to be referred to some other genus, such as 
Archeocalamites.* 
1 Brit. Mus. Catal. of Pal. Plants (1886) p. 73. 
* Schimper (69) vol. i, p. 447; see also Feistmantel (81) vol. iii, p. 10. . 
3 McCoy (47) p. 157. 
4 These are the only two types of fossil plants in the collection that are 
labelled ‘Arowa.’ There is no trace of any specimen of Glossopteris linearis 
from that locality, nor in any rock similar to labelled specimens from Arowa. 
