RHIZOGONIACEAE, 221 
3. nee distichum (Sw.) me oe uniy., li, 665 (1827); 
Fl. N.Z., ii, 115; Handb. N.Z. FI., 
Syn. ee distichum Sw. in hc Tonia: iv, 179. Piston 
Muelleri Hampe in Linn., xxviii, 211 (1855-56). 
Readily known by the wide, not or scarcely glossy leaves, with no trace 
of border, the cells rather large (14-18) and thin-walled, usually opaque 
with chlorophyll, the nerve ceasing below the apex, smooth at back, very 
wide and rather ill-defined, especially below. The fruit is very similar 
to that of the preceding species. Like that, it is widely habebaten in New 
fealand. 
4. arate bifarium (Hook.) Schimp. in Bot. Zeit., 1844, p. 125; 
Fl. N.Z., ii, 116; Handb. N.Z. Fl., p. 485. 
This species belongs to a different section of the genus from the 
preceding ; in these the inflorescence is. basal, the stems simple, Sete 
only at base ; in the present the fruit is lateral, the stems branche ove, 
and radiculose some way up. The leaf-margin here is somewhat auicuned 
and the serratures are often double; the nerve also is spinose at back, and 
the par is strongly curved and asymmetrical, expecially when dry and 
empty. 
It is a frequent species. 
5. Rhizogonium mnioides ae Schimp., op. et loc. cit; Fl. N.Z., ii 
116; Handb. N.Z. FI1., 
Syn. Hyprum ated Hook., Muse. Exot., t. 77 (1818). Mnium 
Hookeri ©. M., Syn., ii, 55D (1851). Rhizogonium Hookeri Jaeg., 
Adumbr., i, 685. . spiniforme var. B H. f. & W., Fl. Antarct., 
Ae 3OT Handb. N.Z. FL. » p- 485.. Hypnum subbasilare Schwaegr. 
Suppl., ili, pt. ii, t. 256 (nec Hook.). 
This and the following species differ from all the preceding in the much 
more robust habit, ig ie papas not distichous leaves, sharply doubly 
spinose along most of the margin. The present species differs from 
R. spiniforme in pret much shorter and less finely subulate leaves, which 
are more strongly crisped when dry than is usual in that species ; smaller 
cells, which are opaque, not pellucid’ as in that ;. the inflorescence also i 
lateral and dioicous, while in R. spiniforme it is basal, ~ autoicous or 
synoicous. The capsule in both resembles that of R. bifari 
Rhizogonium Hookeri is placed in the Handbook N.Z. i as a variety 
of R. spiniforme-—‘ Stems more mPa leaves shorter”; but the ci 
plant of Hooker is certainly R. mnioides, as are other specimens I have se 
so named. Several of the fancies attributed by C. Mueller to his Mniwm 
Hookert are quite inapplicable to Hooker's specimens. Besides which, all 
the fruiting specimens named R. Hookert at Kew have the setae lateral, 
asal. 
Leptot. Cansdichaadai | is not unlike R. mnioides, but is more slender, 
with the leaves falcately incurved when dry, not crisped. 
