BRACHYTHECIACEAE. ays 
3. Brachythecium plumosum (Sw.) Bry. eur. loc cit. 
Syn. Hypnum plumosum Sw. in Act. say 1795, p. 296; 
Fl. orem ndb. N.Z. F'1., _ 479. 
leaves often acute ates by the short seta, poser above reer the 
short, usually blackish capsule; the upper cells — narrow, and 
while enlarged at base not lax and pellucid. B. rutabulum moreover 
is almost constantly terrestrial, while B. plumosum is mostly found 
on rocks in alpine and subalpine streams. <A form oceurs with the 
eaves all strongly and regularly homomallous, occasionally also 
slightly faleate. 
4. Brachythecium paradoxum (H. f. & W.) Jaeg. Adumbr. ii, 405 
(1875-6). 
Syn. Hynum Sones ce H. f.. & W. in ot Journ. Bot. 
ii, 554 (1844); Handb. N.Z. F1., 9: 
This very remarkable species is in habit, ane its ae faleate, 
plicate leaves, exactly like some of the species of Drep — 
especially D. wncinatus, and is classed by C. Mueller, in the Syno 
with these species. e scabrous seta is, however, quite iaeoneitent 
with that arrangement, and it seems clearly to belong g in Brachy- 
thecium; in this wonsieonen it may be noted that N rth Ameriean 
rd. 
occur with the leaves strongly faleate. The strongly serrulate 
acumen of the leaves will distinguish it from the species of Drepano- 
cladus, as a rule, but forms of the present plant oceur with the 
the alar cells are numerous and enlarged, but pass gradually with 
neste ones into the narrow upper areolation; in D. uncinatus, which 
at base, and the alar cells are abruptly enlarged. D. aduncus has 
non-plicate leaves, and the cells are not gradually laxer towards 
ase. D. brachiatus has the alar cells searcely wider than the rest 
of the arts ones, and the leaves are not plicate—at the most very 
faintly stri 
Comutoh relacum in its faleate-leav: es thas may resemble it, 
but the very short upper ce ells are quite different. 
B. paradorum is a_ widely distributed if perhaps rather 
uncommon moss in bogs, and is extremely variable; some of the 
forms are exceedingly slender ; and in Kerguelen it produces forms 
which are with difficulty recognized as belonging to the same species 
as the normal ones 
Evuruyncuium Bry. eur. vol. v, fase. 57-61 (1854).~ 
I treat this genus very much as delimited in the Bry. europaea, 
ie., retaining in it the species remove y reeent authors t 
Oxyrrhynchium, Scorpiurium, Cirriphyllum, ete. 
