Dixon: NEW AND RARE AFRICAN MOSSES 67 
appears preferable to the former, if the plant be retained in a sepa- 
rate section, in view of the very marked and unusual transverse 
undulation of the leaves. 
TorTuULA EXESA (C. Mill.) Broth. 
Zoutpansberg District, North Transvaal, T. Jenkins, commu- 
nicated by W. Ingham. 
This agrees quite well with the description of Barbula exesa C. 
Mill.* The very highly fragile leaves, of which it is hardly 
possible to find a perfect specimen, form the most noteworthy 
feature in this marked species. 
TORTULA ERYTHRONEURA Schimp. 
Cape of Good Hope, S. W. Hall, communicated by L. B. Hall. 
This agrees well with ‘Wilms, 2580,’’ at Kew. Whether it 
be anything more than a form of T. ruralis (L.) Ehrh. may 
perhaps be doubtful. 
OEDIPODIUM AUSTRALE Wager & Dixon 
This extremely interesting plant has been described by Wagert 
but a few additional remarks may be of interest. It is very close 
to the European species, Oe. Griffithianum (Dicks.) Schwaegr., 
but differs in the non-ciliate, mucronate leaves and smaller cells. 
The stems also spring from a creeping rhizomatous primary stem, 
which has not been observed in the northern plant. The gemmae 
are very remarkable, being perhaps the largest and best developed 
of any known species of moss. They are large (300 win diam- 
eter) and lenticular with a thin equatorial ring; while those of Oe. 
Griffithianum are smaller, obovate, and less regular. 
The geographical distribution of the two species is also highly 
remarkable, Oe. Griffithianum being confined to a few alpine 
summits in Great Britain, Scandinavia, Alaska and Greenland, 
while the stations for Oe. australe are confined to low or compara- 
tively low elevations in Natal and the Transvaal. 
ANOMOBRYUM PROCERRIMUM Rehm. 
Dry earth, Pretoria and Van Reenen, Transvaal, H. A. Wager; 
Estcourt, South Africa, 4,600 ft. alt., R. C. Wroughton, March, 
1913, communicated by W. R. Sherrin. 
* Hedwigia 38: 103. 1899. 
+ Trans. Roy. Soc. South Africa, 4:3- pl. I. 
