153 
NEW ZEALAND INSTITUTE. 
BULLETIN No. 3, PART IV. 
IssuED 30TH JUNE, 1926. 
STUDIES IN THE 
BRYOLOGY OF NEW ZEALAND, 
WITH SPECIAL REFERENCE TO THE HERBARIUM OF 
ROBERT BROWN. 
By H. N. Dixon, M.A., F.L.S. 
PART IV. 
Plate TX. 
ENCALYPTACEAE. 
Encatyprta Schreb., Gen. ii, p. 759 (1791). 
Encalypta vulgaris Hedw., Sp. Musc., p. 60 (1801). 
Syn. #. tasmanica Hampe in Linn., 1853, p. 491. E. meee Mitt. 
in Journ. Linn. Soe. (Bot.), iv, p. 72 (1859); Handb. N.Z. FIL., 
p- 422. EH. novae-seelandiae Col. in Trans. N.Z. tik 1864, 
p. 348. 
I do not think it is necessary to labour the question as to the identity 
of the yee y plant with the European species. The most that has 
been said for it, I believe, is that it has less rounded apices of the leaves, 
and a smooth tip to the Beg pots while the geographical distribution must 
be taken aie account, as EF. vulgaris is at least not generally distributed 
in the Sout ra Heiniepihery: ; and if it were, in its norma 
from the replant region it might at any rate lend some colour to the 
theory that the plant found somewhat widely in this region was specifically 
istinct. Since, however, the ordinary form of E. vulgaris with roughened 
Farebiepiek tip exists in Tasmania side by side with the smooth-tipped form 
(cf. Bastow, “ Tasmanian Mosses,” p- 61), this last argument disappears 
altogether. 
As regards the obtuseness of the leaf-apex, it is of no value whatever ; 
the northern plant varies greatly, and the pointed tip is at least so frequent 
that Limpricht (Laubmoose, ti, 108) describes and figures this form as the 
normal one. The smoothness or roughness of the calyptra-tip has little 
more importance. Smooth forms occur not infrequently in the Northern 
Hemisphere. Boulay (“ Muscinées de la France,”’ p. 316), in writing of the 
various forms of this species, says: ‘‘ Quand la om se rencontre lisse 
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