GRIMMIACEAE. 165 
by the larger size and longer seta. Z. Menziesii has a double peristome, 
and is usually a terrestrial or rupestral species, forming denser tufts with 
shorter stems, closer foliation, the leaves closely spirally enrolled when 
Hee wider with broader points, &c. Z. intermedius is nearly always found 
wood. 
3. Zygodon Brownii Schwaegr., Suppl., iv, p. 317 (1842); Fl. N.Z., ii 
p. 81; Handb. N.Z. Fl., p. 434. 
Syn. Z. gracilicaulis C. M. in Hedwig., vol. 37, p. 135. 
The Handbook gives some distinguishing aga in the leaves to 
separate this from Z. intermedius, as does Wilson in his herbarium notes, 
but I do not find them .borne out by an sataigution of the specimens ; 
nor, pees do Wilson’s notes and sketches support the characters given in 
the Handbook. e nerve is certainly not continuous and iy ae Hoag 
ated. "The sole difference is to be found in the peristome; in Z. i 
medius there is an inner peristome only, of 8 cilia ; in Z. Brownii pa 
is an outer peristome present, which, however, is often rudimentary or 
irregular.” I am strongly inclined to think that the two will have to be 
merged into one species. The outer peristome of Z. Brownii may be well 
developed, and in that case there is a distinctly greater difference jer wak 
between this and Z. intermedius with outer peristome wanting. I have 
not, however, had facia material of Z. Brownii under my eye to justify 
the reduction; but I am confident that further study by New Zealand 
bryologists will ake ae in its being made. 
I have examined an original specimen of Z. gracilicaulis C. M. in Herb. 
C. Mueller, and find it absolutely identical, be siraplic - with Z. intermedius 
and Z. Brownti. C. Mueller describes it as not exhibiting peristome, but 
Piothoem places it in a section with saabie peristome ; this implies that 
he has detected a well-developed Pia in which case it must be referred 
to Z. Brownii rather than to Z. inte 
4. Zygodon Men®iesii (Schwaegr.) W. Arn., Dispos. M., p. 15 (1825); 
Handb. N.Z. Fl., p. 435. 
Syn. Codonoblepharum Menziesir soa abey age ee ii, p. 142 ps 
Zygodon Drummondii Tayl. in ond. Jou . Bot. 1847 
(fide Mitten). Brywm oamaruense R. gg r. in Trans. a z. 
Inst., vol. 31 (1899) p. 447 
Generally shorter and, more ‘okaias than the preceding plants, and 
often at least terrestrial in habitat; the stems very short with dense 
leaves which are closely spirally twisted when dry, in general; the leaves 
are wider than in the preceding plants, less acutely pointed, with a 
considerably stouter, brownish nerve, and cells of a different character. 
In the previously enumerated species the cells are filled with the cell- 
are therefore less opaque, but on the other hand are less clearly defined. 
They are usually very regularly is 8 in rows ascending obliquely from 
the nerve to the margin. 
The seta is variable in length, but rarely if ever reaches a centimetre ; 
it is rather stouter than in Z. intermedius, and often flexuose ; the capsule 
is — and wider, with a distinct neck; the peristome well developed, 
