Muscl Exorici.—Menziesiant. 
JUNGERMANNIA HYMENOPHYLLUM. 
Jungermannia frondibus palmatis dichotomis nervosis, 
marginibus denticulatis, fructu in dichotomiarum ax- 
illis, ealyce duplice, evt. squama exigua dentata, ant. 
oblongo-cylindraceo, ore dentato. (Tas. XIV.) 
Has. In sinu Dusky Bay dicto, in Nova Zeelandia. .D, Men- 
zies, 1791, 
Caudex horizontalis, repens, flexuosus, tomentosus, fuscus. 
Stipes vix unciam longus, erectis, flexuosus, compressus. 
Frons membranacea, fusco-viridis, pulcherrime reticulata, pal+ 
mata,segmentis dichotomis, erecto-patentibus, linearibus, apice 
obtusis, sepe emarginatis, marginibus denticulis distantibus 
instructa, nervo valido, fusco percurrente. Fructificatio in 
dichotomiarum axillis. Calyx duplex: ext. squama parva, 
rotundata, ciliato-dentata, appressa: int. oblongo-cylindracea, 
carnoso-membranacea, ore aperto, ciliato-dentato. Capsulam 
non vidi, 
(a ee ARG te 
Although at first sight this may appear very near to J. flalel- 
lata, there are nevertheless abundant points of distinction, The 
stipes is shorter and the fronds longer. These latter have never 
their segments so numerous, nor are they spread out so as to 
form an orbicular outline: add to these the distinctly toothed 
margins of the frond and the differently shaped exterior calyx. 
The great similarity of this plant to Hymenophyllum Tun- 
bridgense, no Jess than its membranous texture, has suggested — 
the specific name. 
Fig. 1, plant nat. size. Fig. 2, portion of the frond, Fig. 3; 
exterior calyx, Fig. 4, double calyx,—magn, 
