50 BRYOLOGY OF NEW ZEALAND. 
Saelania glaucescens (Hedw.) Broth. in Engler and Prantl, Musci, vol. 1, 
300. 
Syn. Trichostomum glaucescens Hedw., Descr., 3, 91, t. 373; Bry. 
Eur., 2, t. 184. Ditrichum —— Hampe i in Fl. “1867, P. 182. 
Saclania caesia Lindb., Utkast, loc. ei 
In dense glaucous bluish-green tufts, <a below, 4in. to lin. high. 
r or linear-subulate from a lanceolate or oblong base, margin plane, bluntly 
serrate above ; nerve distinct, slightly excurrent in the longer leaves ; cells 
all rectangular, at base empty, 4-6 times as long as broad, above about twice 
as as broad, or sometime quadrate, avian in the lower leaves 
more uniform. Capsule erect on a short seta, oval-oblong, thin-walled, 
brown, irregularly plicate when dry and empty; annulus yellow, of two 
rows of cells; lid acutely conical ; peristome conical, the teeth purple, the 
divisions much united above. Autoi oicous; male flowers gemmiform, on 
short branches below the perichaetia. 
n earth in clefts of rocks in alpine districts. 
This rare species will be recognized at once by the bluish-green colour 
from any other moss with which it is likely to be confused. The leaf-cells 
are longer and narrower than in Ceratodon. 
CeratTopon Brid. 
Ceratodon purpureus (L.) Brid. var. xanthopus Sull. 
Syn. Var. flavisetus Limpr. Ceratodon convolutus Reichdt. C. deli- 
ates C. M. and var. minor C. M. 
* Subsp. Ceratodon stenocarpus Bry. Eur. 
Syn. Ceratodon —— Broth. in Abhandl. L. Natur. Ver. 
Bremen, 1900, p. 497. C. corsicus Bry. Kur 
The New Zealand forms : ‘an cosmopolitan species appear to me most 
satisfactorily arranged under the above three heads. The type form at least 
is common in New Zealan 
I have examined the types of C. convolutus and C. delicatulus, and I can 
see nothing in them but varietal forms at most. e leaves manifest the 
The form of peristome with the teeth unbordered or with a s oaica narrow 
and indistinct border, less nodose, and divided to the basal membrane, is a 
character of somewhat more importance (although all degrees of transition 
are to be found between it and the typical purpwreus peristome), and I 
have—somewhat against my own judgment—tretained this series, to which 
the Chatham Island C. elimbatus Broth. belongs, although as a subspecies 
only. I entirely agree with Mrs. Britton (“ North American Flora,” vol. 15, 
p. 61), however, in uniting C. corsieus Bry. Eur. and C. stenocarpus Bry. 
