ADDENDA. 367 
distinet and striking oat under the lens. The fruit does not differ 
from that of M. gra 
The relationship 9p MRA this variety and M. retuswm is rather 
rplexing. In M. retusum the arrangement of the leaves on the 
Satins in the dry state is very similar to that of M. gracile, the 
on the branch) and with their points strongly incurved, so that the 
elongate, straight branches have a very characteristic terete or 
eatenulate appearance, from top to bottom; and so far they are 
identical with those of M. gracile. In M. retusum the nerve of the 
delicate, penicillate, erect, green tuft at the tip of the branch. 
In the new variety deser ibed above of M. gracile, the leaf apex 
is not broad or retuse, but is either very abruptly or more gradually 
narrowed into a long, linear or loriform point, consisting mainly o 
the nerve, but much a and less fragile than that of M. retusum, 
and often formin prolongation equal to half or more of the 
rest of the leaf. This prolongation is usually broken off in all the 
lower leaves, but remains on a considerable number of the upper 
ones, and when dry is not erect, but rigidly deflexed, with a slight 
tendency to twist round the stem in a spiral direetio on, and this 
gives a very distinct appearance to the oe ot the branch in the 
aig state, quite distinct from that of M. retus 
So far at matter is simple, but in one or fae specimens I have 
in my herbarium (e.g., in one collected by Mr. Saimsbury near L. 
Wale ceeiionne. Hawkes Bay, No. 313) the branches show both the 
erect penicillate aristae characteristic of M. retuswm, and the 
refiexed prolongations of the present variety, while the leaf apex is 
somewhat intermediate in form. 
The type of M. appendiculatum C.M. shows a very similar con- 
dition; and I have oes the same thing, though less strongly 
marked, on other specim 
The question arises, F therefore. whether M. retuswm be really 
specifically distinet from M. grac acile. Besides the characters eed 
referred to, I do not know any that separate it, though I have thought 
that the upper cells in M. retusum were somewhat more obscure than 
n M. gracile. The fruit of M. retusum has not been found. The 
oa referred to require a careful study in the fie 
p. 192. Physcomitridium Readeri (C.M.). 
This has been collected by E. A. Hodgson, ‘‘sides of a field 
drain, Kiwi, Wairoa Co. Hawkes Bay, Dee. 1926, ’? and sent me by 
Mr. Sainsbu ury. It agrees quite well with R. Brown’s specimen 
described on the above page. The capsules constantly break up 
Beas along a ian zone, though the lid is clearly different- 
late 
p. 201. Pohlia tasmanica (Broth.). 
Mr. Sainsbury gathered this in fruit on damp earth, Ohuka 
Gorge, Wairoa Co., in Oct. 1925. The fa age not been described 
(except as Bryum Binnsii R. Br. ter.). The seta is red, slender and 
