218 THE MICROSCOPICAL NEWS. 
Of the Fissidentacee F: viridulus, the green flat Fork Moss fruits 
in August and September, on shady banks and on stones in rivulets, 
&c. Stems only + inch ; leaves lanceolate, acute, entire, bordered, 
dorsal wing not reaching to base, nerved nearly to apex; cap- 
sules oval-oblong, erect ; lid conical with a blunt point; barren ~ 
flowers on a short branch. : 
F. polyphyllus, the fern-like flat Fork Moss, is plentiful on rocks 
near Pont Aberglaslyn, but does not fruit in Britain. Stems 3 to 
12 inches in length, curved and branched ; leaves oblong-lanceolate 
or almost ligulate, subacute, entire, apex denticulate; dorsal wing 
rounded at the base, ceasing a little above the base of the leaf. 
Barren flowers plentiful in the axillze of the leaves. 
F., decipiens is found on damp rocks and old walls. 
Anectangium compactum, the compact Beardless Moss, fruits in 
Fig. 57. 
Autumn, in the crevices of moist alpine rocks, especially near 
waterfalls. Wilson states the fructification is truly pleurocarpous, 
although possessing a perfectly-formed vaginula. It is now classed 
with Gymmnostomum. ‘The stems are densely tufted, slender, fragile ; 
leaves lanceolate; obscurely serrulate towards the base ; capsule 
small, oval-oblong. 
Leptodon Smithit and Myurium Hebridarum are both very rare 
Mosses: the one being only found in the Southern counties of 
England, and the other in the Upper North Highlands and the 
Hebrides. 
Antitrichia curtipendula, the Pendulous Wing Moss, is readily 
distinguished from all other Mosses by the narrow apex of the 
young leaf terminating in a double hook. Fig. 57. It is frequent in 
mountainous districts on rocks and trees, but ‘the fruit, which ripens 
in April, is not common. Stems 3—8 inches long, stragglingly and 
pinnately branched; leaves ovate-concave, sharply curved to a © 
