Anomodon.] MUSCI. 35 



faintly 2-nerved ; lid conical. Sw. Muse. Suec. p. 26. Muse. 

 Brit. ed. 2, p. 74, t. 14. 



Rocks, especially those near large bodies of water ; not uncommon. 

 The fruit has not been detected in Ireland. 



2. P. jUiforme, SCHWAEGR. Leaves ovate subacuminated, 

 concave their margins recurved, serrated, their nerve short 

 single or forked; lid conical. Schwaegr. Supp. v. 2, p. 1. Muse. 

 Brit. ed. 2, p. 75, t. 14. 



On rather dry rocks in woods and mountains ; not uncommon. 

 This, like the preceding, is always barren with us. 



29. LEUCODON. Schwaegr. 



Seta lateral. Peristome single, of 32 teeth united in pairs. 



Calyptra dimidiate. 



1. L. sciuroides, SCHW. Leaves closely imbricated, ovato- 

 cordate, acuminated striated; capsule oblong. Schw. Supp. 

 v. 2, p. 1. Muse. Brit, ed.2, p. 112, t. 20. 



On trees ; very rare. This species is given entirely on the authority 

 of Mr. Turner's Muse. Hib. in which, however, no locality is stated. 



* * Peristome double. 

 A. Inner peristome of free cilia. 



30. NECKERA, Hedw. 



Seta lateral. Peristome double; the outer of \6teeth; the inner 

 of 16 free cilia, or united by a very short membrane. 

 Calyptra dimidiate. 



1. N. pumila, HEDW, Leaves bifarious, broad, ovato-acu- 

 minate, concave, their margins when dry reflexed ; setce scarcely 

 exceeding the perichcetia ; capsule oblongo-ovate. Hedw. St. 

 Cr. v. 3, t. 20. Muse. Brit. ed. 2, p. 135, t. 22. 



On trees at Ardtully, near Kenmare. South west of Ireland, Mr. 

 Wilson. The leaves are nerveless, or with two short ones at the base, 

 almost entire ; the branches are flat ; the stem pinnate. The leaves 

 of the Ardtully plant are very broad, concave, with long acuminations, 

 their surface undulate when dry ; young shoots round and slender. 



2. N. crispa, HEDW. Leaves bifarious, oblong, acuminulate, 

 transversely wrinkled; setce much exserted; capsule ovate. 

 Hedw. Sp. Muse. p. 206. Muse. Brit. ed. 2, p. 136, t. 22. 



On calcareous rocks at Dunkerron ; on, siliceous rocks in the woods 

 at Killarney ; fructifying very rarely, as at Colin Glen, near Belfast. 

 Leaves serrulate ; their nerve sometimes extending up half of their 

 length. 



31. ANOMODON, Hook, and Taylor. 



Seta lateral. Peristome double ; outer of 16 teeth, inner of 16 

 ez7za%lternating with the teeth. Calyptra dimidiate. 



1. A. curtipendulum, HOOK. ET TAYLOR. Leaves ovato- 

 acuminate, denticulate, their nerve not quite percurrent ; setce 



