ToRTULACE^.J 246 [MolUa. 



elliptic or subcylindric, fuscous, lid conico-rostrate, teeth of per. pale 

 yellow, short, unequal and variable, papillose. Male plant smaller, 

 bracts ovato-acuminate, laxly areolate at base. 



Hab. — Calcareous rocks, especially on the coast. Fr. 4 — 6. 



Ormeshead and Carrig Onnen and Tros-y-Marian, Anglesey {Wilson 1828) ! ! Gap of 

 Dunloe (Wilson 1829) ! ! Near Bantry (Miss Hutchins iSog) ! Dunkerron, Kerry and 

 Kenmare (Taylor 1833). Aber (Hunt 1865) ! ! Milnthorpe (Barnes 1868) ! ! Bangor 

 (Wilson 1856) ! Leigh woods, Bristol (Wilson i860; ! ! Cliffs at Newhaven (Hemmtngs 

 1855) ! Gordale (Nowell 1854) ! ! Minehead, Somerset (Miss Gifford 1868) ! ! 

 Elburton and Knighton, Plymouth (Holmes 187 1) ! ! Loch Ness (Hunt) ! Dolgelly 

 (Tetlow 1880) ! ! Ingleton (West 1882) ! ! Spanish head and Douglas, L of Man 

 (Holt 1884) ! ! Dovedale (Wilson 1867) ! Penzance (Curnow) ! ! 



Var. p. cophocarpa {Schimp.) 



Plants more slender, tall, bright green above, rufescent below ; leaves 

 lanceolate below, longer, acutely acuminate ; caps, on a shorter pedicel, 

 oval, brown, peristome very rudimentary. 



Syn. — T. mutahile Var. 8. cophocarpum Schimp. Synops. 2 ed. 171. 



Hab.— Chee-dale, Derby, c. fr. {Whitehead 1880) ! ! Miller's dale {West 

 1881) ! ! Clydach Valley, near Abergavenny {Mitten 1883) ! ! 



This is indeed a variable moss, as one of its names implies, and no 

 doubt the last species has often been confounded with it. The excurrent 

 nerve varies in the length of the point, but there is always a certain tapering 

 upward of the lamina, this, with the minute opake areolation and plane 

 margins, best distinguish it. Mr. Mitten distributed specimens of the 

 Var. /3. as Barhula paludosa Schwaegr. [i^i -L) = Tortula crocea Brid. (1806), but 

 it does not belong to that species, for although having much external resem- 

 blance to it, it may be noted that Barhula crocea has shorter, straighter and 

 more erect leaves, suddenly pointed, the nerve only forming a short apiculus, 

 the areolation of the upper part is also smaller and more indistinct, and the 

 margin towards the apex has several irregular teeth. 



17. MOLIIA LUTESCENS Lindb. 



Dioicous; resembling M. brachydontia, but with longer ligulate 

 leaves, aristate with the terete excurrent nerve, the cells all pellucid 

 and pulvinate. (T. XXXVIII, C.) 



Syn. — Mollia lutescens Lindb. MSS. 



Dioicous ; in small lax incoherent tufts, yellowish green above, 

 rufescent below. Leaves accrescent upward, erecto-patent when moist, 

 crispate when dry, very long, narrow and ligulate, scarcely concave, 

 suddenly pointed and aristate with the excurrent nerve ; basal cells 

 narrowly rectangular, pellucid, upper all pellucid, very distinct and 

 with chlorophyl, not papillose, but pulvinate in outline. 



