244 BRYOLOGY OF NEW ZEALAND. 
length of the peristome in the American plant (in C. tenella the peri- 
stome varies from .3mm. to .4mm.) and I am not aware of any other 
suggested difference, and am unable myself to detect any 
C. parvula Mitt. must’ also enter the synonymy. Mitten had no 
intention of creating a third Australasian species, but simply of re- 
naming the N.Z. plant, on the supposition that it was different from 
merican species, C. consimilis. 
Fleischer, it is true, in revising the genera of C. Mueller’s her- 
barium per ont g. lv, 284) considers ‘‘C. ‘chlor ophyllosa C.M., n. sp 
ined.,’’ pidonticnl with C. parvula Mitt., and re-names it Cyptodon 
a piled "(Mitt ) Fleisch. C. chlorophyllosa however is not ined. ; it 
ublished in Hedwig., xli, 131 (1902), and it is certainly not identical 
with Mitten’s own specimens of C. parvula, which are quite identical 
with C. tenella, and not a Cyptodon. Fleischer must I think have 
been misled by a wrongly named specimen of C. parvula, and C. 
Mueller’ s name should be retained, whether in Cryphaea or anne 
don 
I have carefully studied ee specimens of the New Zealand 
C. tenella, which appeared t show, with much polymorp hy as to 
size, certain variations in a perichaetia and peristome characters; 
the perichaetial bracts may be either gradually tapering or very 
abruptly setaceous from a broad base, obtuse or even retuse at the 
apex, with the arista either erect or markedly spreading. The peri- 
stome teeth may be sparsely papillose so as to be almost Sapte tae 
or savonand papillose and opaque, and the same applies to the inn 
ocesses ; they also vary in length from under .3mm. to full rae 
None of these variations, however, appear to be correlated with one 
another or with the size of the plant; nor are they at all well defined, 
and they do not afford a basis for even a varietal segregation. 
C. tenella is a common species on trees. 
2. Cryphaea dilatata H.f. & W., Fl. N.Z. ii, 102 (1855); Handb. N.Z. 
Fl1., p. 461. 
Syn. Cyptodon dilatatus Par. & Schimp. e Par. Ind., p. 310. 
Cryphidium dilatatum Broth. in Engl. & Prantl, 2 See 
fam., Musei, ii, 743. Dendropogon Muelleri Hampe i in Linn. 
XXVii (1856) 212, Cryphidium Muelleri Broth., op. et loe. 
cit. 
This and the following species are much alike in habit, and only 
to be distinguished by microscopic examination. The stems are elon- 
gate, more or less pendulous, flexuose—not rigid as in C. tenella 
—and have a bepily ovate, suborbicular leaf, with a short, broad, 
often apex, and a stout nerve almost percurrent. 
The present species scarcelv differs from the next except in the 
leaves bane almost entire, only very finely crenulate above, and the 
seen leaves being quite entire 
The perichaetia are often ecminal on quite elongate branches, but 
the fertile shoots may be, even on the same plant, quite short and 
similar to those of most species of Cryphaea. I can ye think 
the separation from Cryphaea on this ground is justifi 
