350 BRYOLOGY OF NEW ZEALAND. 
apply to the basal part.) In any case quite a number of specimens 
show some of the leaves entire while others are crenulate. In a fine 
eases where the margin is entire there is absolutely nothing to sepa- 
rate the plants from A. petrophila. 
. novae-zealandiae Schimp. MS. in herb. is a tall ‘‘ mutabilis’’ 
form. It was collected by Dr. Julius Haast. There is absolutely 
no connection between this and R. Brown’s species of the same name, 
and Roth in his description and figures has mixed up the two quite 
gratuitously. Both however happen to be forms of <A. petrophila, 
though quite diverse ones. 
A. minuta R. Br. ter. only differs from A. petrophila in the 
minute size of all its parts; the leaves extremely narrow, almost 
subulate above, and the cell walls rather thin for the genus. e 
stems in Brown’s type are only 3-4 mm. high, the leaves about .25mm. 
long. 
A. petrophila is a very common species in all the districts 
favourable to Andreaea. 
2. A. acuminata Mitt. in Journ. Linn. Soc., Bot., iv, 64 (1859). 
Syn. ? A. homomalla C.M. in Hedwig., vol. 37, p. 80. 
This species closely resembles the acute leaved forms of A. petro- 
phila, but is autoicous; the leaves are somewhat spreading ; longly 
inerassate throughout the width of the base ; the upper papillose 
i minate. 
cence is perhaps the most important character, and the elongate cells 
throughout the base a practical one; but this is also characteristic 
folia, and occurs sometimes, though I believe rarely, in 
A. petrophila. 
It is probably not very common. 
In all probability A. homomalla CM. is synonymous, since 
according to Roth it is autoicous; the description however gives no 
distinctive marks by which it could be separated from several of the 
allied species. 
3. A. acutifolia H. f. & W. in Lond. Journ. of Bot., iii, (1844), p. 
535; Handb. N.Z. F1., p. 400. 
This appears a fairly distinct species, for the group. The leaves 
are rather large, long and narrow, straight and erect when dry, not 
