Hypnace^.] 40 [Avtblysiegium. 



excavate at angles ; ramuline leaves less subulate, not cirroso-flexuose, 

 nerve stout, yellow, reaching beyond middle to near apex ; leaf-cells 

 very narrow, longish vermicular, at base and angles large brown and 

 oblongo-rectangular. Perichsetium as in A. glauciim. Caps, on a 

 strong purple seta, cernuous, oval-oblong, subarcuate, brown, when dry 

 strongly arcuate and constricted below mouth ; lid convex-conic, 

 annulus narrow, teeth narrower less subulate, processes entire at keel, 

 cilia 2 — 3. 



Hab. — Bogs and springs in calcareous districts. Fr. 6. 



Var. y8. gracilescens Schp. 



Very slender, procumbent or prostrate, irregularly branched, the branches 

 nearly simple. Leaves small, glossy, falcato-secund, faintly plicate, rufo- 

 fuscescent, strongly nerved. 



Syn. — H.falcahim Var. yS. graclUscens Schimp. Synops. 2 ed. 743. 



Hab. — Wet rocks in mountains, rare. 



Ape Tor, Staffordshire (Rev. A. Ley 1S81). Ben Lawers (Dixon 1893). Yorkshire. 



Var. y. fluctuans Br. Sch. 



Stem long, deep green, fasciculate-branched, pinnate, robust ; paraphyllia 

 few or none. Leaves subfalcato-secund, the apical strongly falcate, scarcely 

 sulcate or auricled ; nerve stout, prolonged to apex, basal cells less distinct. 



Syn. — H. commutatum Yax.Jluctiiani Br. Sch. Bry. eur. fasc. 57 — 5i, p. 39. Schimp. Synops. 613. 

 H. irrigattim Zett. Muse. Pyren. 1.. 242. Husn. Muse. gall. 396, t. 114. 

 H. virescens BouL. Fl. cr. de I'Est. 

 H. napcEum Limpr. Kr. fl. Schles. 47.3. 

 H.falcatum Var. vircseens Schpr. Syn. 2 ed. 743. 



Hab. — \\'et rocks and waterfalls, not common. 



Rigg mill, Whitby (Bralthwaife 1842) ! ! Malham, Yorks. (Wilson 1839) ! ! Spring near 

 High Force, Teesdale (Dixon 1896) ! ! Hale moss. 



22. AMBLYSTEGITJM SENLTNERI {Schp.) De Not. 



Dioicous ; yellowish or brownish-green, slender tall and pinnate. 

 Leaves crowded, falcato-secund, ovato-lanceolate, acuminate, entire, 

 not plicate, the nerve strong vanishing in the acumen, cells firm, auricles 

 decurrent. Perich. bracts sulcate. Capsule elongate, subcylindric. 

 (T. XCII). 



