220) BRYOLOGY OF NEW ZEALAND. 
Ruizoconium Brid., Bryol.-uniy., u, 664 (1827). 
The position of this genus has given much perplexity to systematists ; 
on account. of the jetatél 0 or hana ya esa it has been placed by many 
authors in the Pleurocarpi, but its affinity is rather with the Mniaceae, 
and the difficulty is probably best ee by vital it, as Fleischer has done, 
with its closely allied genera, in a family of its own 
KEY TO THE SPECIES. 
Leaves very narrow, more or less subulate “ap ha 2 
Leaves wider, oblong-ovate or ovate- lanceolate oa Nee 3 
Leaves much crisped when dry ; fruit lateral es .. 5. mnioides, 
Leaves slightly crisped when dry ; fruit basal 6. spiniforme. 
Leaves doubly serrate gin = 4. bifartum. 
Leaves simply serrate Gs Sea ane es ee > 
Leaves enon with narrow cells... yas 8, .. lL. pennatum. 
Leaves not 5 
Nerve paahacory subequal throughout leaf, leaves oblong -lanceo- 
2. novae-hollandiae. 
Nerve — below ha Sap very wide below, leaves widely ovate- 
oblon: 3. distichum. 
1. Rhizogonium pennatum H. f. & W., Fl. N.Z., ii, 116 (1855); Handb. 
Z. Fl., p. 484. 
Syn. 2. sinuatum C. M. in Hedwig., vol. 36, p. 333 (1897). 
A delicate species with distichous, narrowly ete Becca leaves, 
with a stout cartilaginous wet: entire or dligh htly toothed above (the 
description in the Handbook, “‘ leaves quite entire, 
he nerve excurrent in a stout aris fista, The Piatt inclined when young, 
horizontal when old, with the seta very abruptly bent at the P capes base. : 
sree Rhicogoniuam: sisetunin "Bamps: in ae xl; 314 (878). 
icray a little wider and less tapering usually, nerve and border aeons 
rrower, border usually with t ste or three sharp teeth on each side n 
PLS cells a little more distin 
The type of R. pennatum Ai the leaves not perfectly entire, but 
occasionally with one or two distinct teeth. Hampe’s plant is certainly 
not more than a variety, and I suspect that further investigation will show 
that no clear line can rawn between the two. 
- pennatum appears to be rare; I have seen it wy from the South 
Island ; but it occurs in Tasmania and Australia. 
2 iisaogeiehicch novae-hollandiae Brid., Bryol. univ., u, 664 (1827); 
Fl. N.Z., ii, Laide oe N.Z. Fl, p. 484. 
th: firm. 
slightly differentiated, seonmelly towards base, and sometimes opaque, so 
that the leaves may be indistinctly and narrowly bara red. The ca ; 
is inclined or horizontal, narrower and ae than in the Breondins, sarcinee 
It is a fairly frequent plant. ae AS 
