NEW ZEALAND INSTITUTE. 
BULLETIN No. 3, PART V. 
STUDIES IN THE 
BRYOLOGY OF NEW ZEALAND 
WITH SPECIAL REFERENCE TO TEE HERBARIUM OF 
OBERT BROWN. 
By H. N. Drxon, M.A., F.L.S. 
PART V. 
PLEUROCARPI. 
ERPODIACEAE. 
AULACOPILUM Wils. in Lond. Journ. Bot. vii, 90 (1848). 
A. glaucum Wils. op. et loc. cit.; Fl. N.Z., ii, 98; Hanb. N.Z. FL, 
p. 456. 
A minute, corticolous plant, which may have been overlooked, but 
appears to be very rare; I have not’ heard of any records since the 
original by Colenso. The capsules are rather like those of Fabronia, 
but are gymnostomous, and the conspicuous, striated and eontorted 
ealyptra, embracing the whole capsule, is very distinct, as are the 
broad, nerveless, papillose leaves. 
Mitten attributes the species to S. Africa, and it is indeed a very 
moot point whether the African and Indian plants, as well as the S. 
American be really distinct from A. glaucum. As far as I am aware 
the supposed differences entirely consist of a slight modification in 
the leaf apex, which in the New Zealand species is acute and con- 
