240 BRYOLOGY OF NEW ZEALAND. 
colorous, in the African very shortly piliferous and hyaline, in A. 
oaidulan Thw. & Mitt., according to Mitten, broader and less acu- 
foe te than in A. glaucum. The New Zealand plant, however, has 
e leaves frequently, perhaps normally tipped with a single fine 
oe aline cell, and is occasionally prolonged into a short but distinct 
sola hair. -point ; and I am unable to detect any difference whatever 
n the Ceylonese A. tunis, The S. African plant has the leaves 
miamite with a distinct but very short hyaline hair-point, thus dif- 
fering somewhat Nene we glaucum; ee vines is by no means universal, 
abbreviatum Mitt., but of course excluding the Australian A. Ho 
kinsoniae, which is quite distinct. 
HEDWIGIACEAE, 
Hepwicia Ehrh. in Hannov. Mag. 1781, No. 69, p. 1095. 
Hedwigia albicans (Web.) Lindb. Muse. Seand. 40 (1879). 
Syn. H. ciliata Ehrh. et auct. plur.; Handb. N.Z. FL, p. 423. 
H. microcyathea (C.M.) Par. Ind. p. 554. Pilotrichum 
microcyathewum C.M. in Bot. Zeit. 1851, p. 564. 
A common and variable rupestral species on ecrete rocks, almost 
cosmopolitan. Mitten reduced H. microcyathea (C.M.) to this species, 
and a New Zealand specimen in my herbarium denied as such by 
C. Mueller gece is Piston ve in no way different from the ordinary 
forms of H. a 
Hepwieipium Bry. eur. fase. 29-30 (1846). 
Hedwigidium imberbe (Sm.) Bry. eur. loc. cit. 
Syn. Gymnostomum meee Sm. Engl. Bot., t. 2237. Braunia 
Novae-Seelandiae C.M. & Beck. in Trans. N.Z. Inst. 
xxvi, 275 (1893). Sia Drummondu Tayl. in Lond. 
Journ. Bot., v, 37 (1846). Neckera Drummondii C.M. Syn 
H, 106. edwigidium Drummondii Jaeg. Adumbr. ii. 89. 
Hedwigidium differs from Hedwigia principally in the Apa 
bis eile, Sey stoloniform shoots, the leaves muticous or very 
rarely shortly hyaline pointed (though the leaves on the stoloniform 
shoots may be puterone the striate capsule, and the perichaetial 
leaves not ciliat 
Braunia pie a ah C.M. & Beck. is vcd LS here, 
as Mitten suspected. I have a specimen of the original plan 
Beckett’s herbarium, which is sterile, but porate canis are the 
usual European forms of H. imberbe; it is in fact more exactly iden- 
tical with these than are some other New Zealand and Tasmanian 
forms, which often have longer and more acuminate leaves, not o 
seareely striate when dry. This, however, oceurs equally in pe 
northern plant; I have forms quite agreeing from Luchon, in the 
Pyrenees. 
ee Ne ES 
a Se ee 
