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NECKERACEAE., 
Key. 
Stems and branches robust, 2-3 mm. across; leaves large 1. cochlearifolia 
Stems and branches filiform, about i mm, across; very 
soft; leaves small, about 1 mm. long .... 2. mollis 
1. Weymouthia cochlearifolia (Schwaegr.) Dixon comb. nov. 
Syn. Hypnum cochlearifolium Schwaegr. SUPPL..t, 2b; De 
221 (1816) ; Fl. N.Z. ii, 111; Handb.‘N.Z. FL, p. 480. Hyp- 
num flexile Hook. Muse. exot., t. 110 (nee H. flexile Sw.). 
Coelidium cochlearifolium Jaeg. Adumbr. ii, 383. Lem- 
bophyllum cochlearifolium Lindb. in Act. Soe. se. fenn. 
1872, p. 277. Meteorium molle var. majus Bastow, Tasma- 
nian Mosses, p. 81, in Papers & Proce. R. Soe. Tasmania, for 
1886 (1887). 
var. BILLARDIERI (Hampe) Dixon comb. nov. 
Syn. Neckera Billardieri Hampe in Linn. xxx. 637 (1859-60). 
Pilotrichella Billardieri Jaeg. Adumbr. ii, 163. Hypnum 
cochlearifoium var. B H. f. & W., Fl. N.Z. ii, 110; Handb. 
iy AN (ye Weymouthia Billardierit Broth. in Engl. 
& Prantl, Pflanzenfam., Musci, ii, 812. 
Families, argued some very wide differences; but the few authors who 
deal with these plants seem to make no comparisons and draw no 
distinctions between them. Herbarium specimens give little help. It 
p 
m i more branched habit, with strai r but the 
leaf characters appeared to show no difference whatever. A further 
stu f more specimens showed that the vegetative characters are 
