POTTIACEAE. 133 
H. macrophylla, and if these can be associated with fruit of intermedia 
there is absolutely nothing to —— the two but the slightly and very 
inconstantly longer seta of 
ave therefore retained Tietete original three species, but with some 
considerable doubt as to their validity ; ; and I have based the difference 
between H. macrophylla and the others, in the key, not on the actual length 
of the seta, or the degree of exsertion of the capsule—which obviously 
depends somewhat on the length of the admittedly variable leaves—but on 
the relative lengths of capsule and seta; in Beckett's em plant the seta is 
only equal] to the capsule-length, or even shorter, while in the other two 
species the capsule is smaller, and decidedly shorter than the seta. 
2. Hennediella intermedia (R. Br. ter.) Par., op. et loc. cit. 
Syn. Hennedia intermedia R. Br. ter., op. et loc. cit. 
apsule decidedly shorter than the seta, which, however, is scarcely 
longer than the leaves. Leaves longer and narrower than in the previous 
species. 
wn admits the difficulty of separating this and the next species 
from one iother, but, as he states that he has observed the two for several 
4a is described as “dark green” and H. microphylla as 
f 
the capsule is not fully exserted, and the leaf-areolation presents some 
slight difference from that of H. microphylla, which may or may not be a 
specific character. 
3. Hennediella microphylla (R. Br. ter.) Par., op. et loc. cit. 
Syn. Hennedia microphylla R. Br. ter., op. et loc. cit. Pottia 
C. M. in Hedw., xxxvii, 132. Pottia grata R. Br. ter pig naam 
N.Z. pss vol. "26, p. 293. ? Pottia austro-georgica Card. Not. 
prélim. n Bull. Herb. Boiss., 2me sér., vi, p. 5. 
This species, 2 probably the last, appear to differ from H. = 
—apart from sporophytic characters—in tc a narrower and 
border of marginal cells, less — at any rate in the upper part of the 
leaf, and differentiated ‘from the median cells less iy form than by 
empty and smooth, or nea a so, as compared with the papillose, soiitabet 
= _ of the middle of the leaf ; this species is figured by Brotherus, 
cit., 274; but it fails to give a good idea of the strong, highl 
differentiated border characteristic of H. macrophylla, and present, at 
least in the lower part of the ~*~ in the other species. 
R. Brown in Trans. N.Z. Inst., vol. 26, p. 289, has some strictures on 
Beckett’s methods and on his description of P. marginata. That Beckett 
with Beckett lies; while his main contention—viz., that the plant which 
