Musci Exorict1.—WMenziesiant. 
HYPNUM TENUIROSTRE. 
Hypnumcaule repente, ramis erectis, foliis faleato-secun- 
dis ovatis longe acuminatis subintegerrimis enervibus, 
capsula oblongo-ovata cernua, operculo longirostrato. 
(Tas. CXI.) 
Haz. In sinu Dusky bay dicto apud Novam Zeelandiam. 
DD. Menzies, 1791. 
Caulis repens, flexuosus, filiformis, ramosus, foliis plerumque de- 
stitutus, ramis erectis iterum sepissime divisis. Folia fusco- 
viridia, nitentia, undique inserta, faleato-secunda, ovata, con- 
cava, longe acuminata, integerrima, vel sub lente apice minu- 
tissime serrulata, omnino enervia. Seta subuncialis, flavo-ru- 
fescens. Capsula ovato-oblonga, cernua, fusca. Operculum 
rostro longo tenui. Calyptra pallide fusco-flavescens, dimi- 
diata. Peristomit externi dentes 16, intense flavi, transversim 
striati, margine quasi denticulati ; inéerni membrana plicata, 
—-16-fida, segmentis ciliis interpositis, 
H. tenuirostre belongs to a numerous family of the genus re- 
markable in having falcate leaves; and though the habit of this 
plant is very unlike that of 7. cupressiforme, yet the leaves, when 
magnified, bear no inconsiderable resemblance to some of its 
varieties, from all which it may be at once distinguished by the 
length of the operculum. 
Fig. 1, plants, zat. size. Fig. 2, portion of a branch. Fig.3, 
leaf. Fig. 4, capsule. Fig.5, calyptra. Fig. 6, teeth of outer 
peristome. Fig. 7, portion of inner ditto.—magn. 
