HYPOPTERYGIACEAE. 293 
Now as L. concinna Hook. is based on Menzies’ Dusky Bay plant 
and on chat alone, it is obvious that the name belongs to the New 
Zealand moss, whether or not the S. American moss be the same 
species. 
In the second place it is absurd to speak of ‘‘Leskea concinna 
Schwaegr., not of Hooker,’’ because Schwaegrichen ’ s figure and des- 
ebay are based on the very same plant, viz. Menzies’ Dusky Bay 
mo 
a as to the supposed differences as given in the ages. 
The only reason for supposing there to be a dioicous plan in New 
Zealand i is, so far as I am aware, the fats that i agra in bees notes 
against Menzies’ plant ‘‘ no ¢ fl. to be seen on the specimen.’’ But 
Schwaegrichen deseribes it as monoicous, and this aasiy outweighs 
the negative experience of Wilson, based as it is moreover upon only 
a stem or two at most. The ¢ flowers in this group, it should be 
diagnosing the inflorescence. The only other point is that of the seta. 
This varies in the New Zealand plants from 2.5 mm. to 9 mm. in 
height, it. varies considerably in stoutness, and is practically smooth 
always or'very slightly sa. ager oe pe description in the Handbook 
of the seta of H. concinnum as ‘ , thicke ned upwards, scarcely 
longer than the perichaetial leaves, poten aay is based, no doubt, upon 
one or two sketches of Wilson’s, drawn however from quite immature 
s figures in the Musei 
Exotici, from the same plant. (Hooker there goes to the opposite 
extreme, and makes the seta as much too long and thin as Wilson’s 
sketch represents it too short and stout). 
In short there is only one New’ Zealand species of this group, an 
autoicous plant, and the only point as to which there is any question 
is the correct name. This is undoubtedly H. concinnum (Hook.), 
pak il the Bourbon plant, H. Struthiopteris iSeheseat. Me Bri be the 
same thing, in which ease the latter name would have priority. + 
to this, the remarks of the authors of the, Bryologia ee (ii, 9) 
are very pertinent, and I should be quite prepared to find the S. 
African and ni Australasian plants referable to one and the same 
species. The Bourbon H. Struthiopteris is, however, a much smaller 
and delicate Boat than the.Australasian, and in view also of. possible 
difference in the inflorescence I do not think it safe at present to unite 
them. 
H . concinnum is a frequent ee re is easily ‘known by th 
elongate, pinnate fronds and pale green or yellowish colour. It is. 
indeed, less likely to be taken for another ie of be genus than 
to be confused, by its superficial resemblance, with some quite different 
moss; but a very slight examination at once “shows its sti character. 
Subgenus IT. ee St neieeralqar. 
Dioicous. Stipes long ; frond more or less horizontal, large, trian- 
gular-rounded, rigid; branching bi- or i sere axillary bristles 
wanting; leaves very small. — 
