216 BRYOLOGY OF NEW ZEALAND. 
‘20. Bryum campylothecium Tayl. in Lond. Journ. Bot., v, 52 (1846) ; 
Fl. N.Z., ii, 86; Handb. N.Z. Fl., p. 439. 
This species has been confused with the last, and with B, Billardier: ; 
indeed, the original description is, according to Wilson, compounded of 
is much smaller; the leaves are densely comose in small compact heads, 
suberect when moist, when dry closely appressed and little altered in form, 
not contracted or twisted, and they are quite without the border of narrow 
cells so marked in the two preceding species. 
21. Bryum laevigatum H. f. & W. in Lond. Journ. Bot., iii, 546 (1844) ; 
Handb. N.Z. Fl., p. 440. 
Syn. B. crassinerve H. f. & W., Fl. N.Z., ii, 83. B. Traillii R. Br. 
ter. in Trans. N.Z. Inst., vol. 31, p. 460 (1899). 
In this and the three succeeding species the leaves are not comose as in 
the preceding ones of the group, but fairly equally arranged along the stem. 
ey are very concave, shortly and widely pointed, and more or less 
. Hutton forming a link 
ig For the present, however, I keep them 
distinct, The differences may be tabulated as follows :-— 
B. incurvifolium.—Slender, elongate, with small, scarcely bordered leaves ; margin 
nearly plane; cells small, incrassate. 
B. laevigatum.—Moderately robust; leaves about 2mm. long, bordered, vith 
margins strongly recurved below; seta about 3cm.; capsule 3-4 mm., bright 
reddish-brown. 
B. Huttonii.—Very tall; leaves slightly longer and larger, margin less recurved ; 
cells slightly larger; seta 4-5 cm.; capsule 4-5 mm., paler. 
eximium.—Very robust, with lax, widely spreading, very large leaves, 4-6 mm. 
long ; sterile. 
is) 
22. Bryum incurvifolium C. M. in Bot. Zeit., 1851, p. 549. 
See note above, under B. laevigatum. It has not been found in fruit, 
where it was collected by James Murray in 1907; but I find two gatheri 
in Brown’s herbarium which must be referred here, one without locality 
beyond “ South I.,” the other from the west coast in the same Island. 
23. Bryum Huttonii R. Br. ter. in Trans, N.Z. Inst., vol. 31, p. 460 
(1899). 
A fine species, though, as remarked above, not easy to define structurally. 
The fruiting characters mentioned above may have some weight. An 
