Musct Exorict.—enziesiani. 
GYMNOSTOMUM MENZIESII. 
Gymnostomum, caule subsimplice, foliis oblongo-ovatis 
apice denticulatis nervosis piliferis, capsula oblongo- 
clavata subrecurva horizontaliter inclinata, operculo 
conico, rostro brevi obliquo. (Tas. VI.) 
Leptostomum Menziesii. Brownin Linn. Trans.vol.\9. 
p. 321. 
Has. Staten Land, prope Cape Horn. D. Menzies. 1787. 
Caules vix unciam longi, subsimplices, czspitosi, basi radicibus 
tomentosis fusco-ferrugineis dense tomentosi. Folia pallide 
viridia, erecta vel erecto-patentia, oblongo-ovata, planiuscula, 
minute reticulata, margine swpe recurva, apice denticulata, 
nervo valido concolore ultra apicem in pilum desinente in- 
structa ; inferiora breviora. Seta 5 ad 6 lineas longa, erecta. 
Cipisala oblongo-clavata, paululum subhorizontaliter inclinata, 
sursum paululum curvata, ore parvo, subincrassato; intra mar- 
ginem membrana annulari alba. Operculum conicum, rostro 
perbrevi obliquo. 
a, 
I regret being obliged to differ from so learned and so acute a 
botanist as Mr. Brown, who in the 10th volume of the Linnzan 
Transactions has constituted of this and some allied species 
having a membranous ring to the mouth, the genus Lepfos/o- 
mum. But much as I could wish to see the plants he has there 
ught together (which certainly have a very peculiar habit) 
separated from the other Gymnostoma, yet the doing so would 
oblige us to remove also G. Griffithianum, G. microstomum, 
and some others which have no character in common with the 
Leptostoma of Brown, but the annular membrane ; and this is 
to be discovered with so much difficulty that I believe it would 
often escape the notice of the most accurate investigators. 
Fig. 1, tuft of plants, nat. size. Fig. 2, single plant magn. 
Fig. 3, lower leaf. Fig. 4,4, upper leaves. Fig. 5, portion of a 
leaf. Fig. 6, portion of a capsule to show the annular membrane. 
Fig. 8, operculum, 
