POTTIACEAE. 117 
var. longifolium, though not so strongly marked a form of this as some I 
have seen. 
Rodway describes (cf. Synonymy) a sterile moss from Tasmania, from the 
description of which I strongly suspect it to be the same varietal form of this 
lant. 
Knight described (in Trans., vol. 7) a var. intermedium, without 
apparently being aware of the already existing var. intermedium Schimp. 
As, however, it does not appear to possess any very marked characters it 
had perhaps better be dropped rather than renamed. 
INCERTAE SEDIS. 
Gymnostomum westlandicum R. Br. ter. in Trans. N.Z. Inst., vol. 35, 
p. 328. This may be the gymnostomous form of Weisia viridula, but I do 
not feel at all sure about it; the description and figures do not give much 
aid. 
EXCLUDED SPECIES. 
patulum Knight = Hymenostomum. 
Knight Schimp. = Dadypeidon lingulatus. 
sulcatum Knight = Zygodon sulcatus. 
areolatum Knight = Poittia areolata. 
angustatum Knight = Weisia Weymouthi. 
asctigbe 9 Br. 52 = W. Weymouthii var. lancifolia 
mR. Br. ter., G Wrightii R. Br. ter., G. longirostre R. Br. 
ter., and a6. onli Bask t: (Hand, N.Z) EL). = Hymenostomum patulum. 
Further excluded species will be found in the synonymy of G. calcareum 
and of Weisia viridula var. gymnost 
Paris, Index, ed. ii, cites G. calcareum var. australe Broth. & Geh. from 
The reference, however, is erroneous; the variety was collected in 
Australia. 
bpegiira 
Hymenostyiium Brid. emend. Lindb. 
A genus separated by Lindberg from Gymnostomum by the stem three- 
ed in transverse section, without central strand; the leaves very 
little curled when dry, usually rather rigidly incurved, the capsule some- 
what pachydermatous and glossy, and especially by the long beaked lid 
remaining attached to the wi by which it is often held in its 
place long after detachment at the rim, as in Pottia Heimii, and which 
ultimately falls with it. The type of the genus is the following species, 
now recorded for the first time from New Zealand. 
H. curvirostre (Ehrh.) Lindb. de Europ. Trichost., p. 230 (1864). 
Syn. Pottia curvirostris Ehrh. Pl. crypt. n. 93 et in Beitr., i, 188 
(1787). Gymnostomum curvirostre Hedw. Descr., ii, 68 ’ (1789), 
1). 
Zealand mosse Fane several from Mount Ida, Manio- 
toto County, Otago; among i were several tufts of Hymenostylium, 
which I am quite unable to separate from species, frequent an 
suspect that H. longopulvinatum Duo. from Patagonia may prove to be the 
same thing. It is remarkable that Mount Ida i is also the only known habitat 
