EACOMITEIDM. 125 



naked below. L. spreading or slightly secund, elon- 

 gate, lanceolatSj gradually tapering to a blant, slightly 

 dentate apex, margin recurved below, nerve strong, 

 two-winged at back ; per. 1. shorter. Caps, almost 

 obovate, smooth, furrowed when dry, on a pale flexuose 

 seta, mouth red, lid obliquely rostrate, annulus large. 

 Calyptra five-lobed. Dioicous. 



Moist alpine rocks. April, May. 



Scotland, Wales, Ireland. 



Sub-genus 2. Dryptodon. 



L. soHd, muticous. Calyptra with a rough, subulate 

 beak. Seta erect, lid of capsule with an aciculate beak. 



237. R. ellipticum, Turner. Blackish, rigid tufts. 

 St. 1 inch, decumbent and naked below. L. spreading 

 from an erect base, lanceolate, oblong, strongly nerved 

 to apex, margins plane, thickened, upper cells sinuous, 

 quadrate, lower longer, linear, sinuous. Caps, erect,, 

 ovate-globose, smooth, on a short, thick, twisted seta, 

 lid large, conical, with a long, slender, subulate beak. 

 Dioicous. 



Moist alpine rocks. October — April. 



Scotland, Wales, Ireland. 



238. R. aciculare, Linn. St. 1 — 3 inches, csespitose, 

 decumbent and leafless, and slightly tomentose at base. 

 ■Branches very leafy. L. spreading or secund, ovate- 

 oblong or broadly lanceolate, obtuse, sometimes toothed 

 at apex, to which the nerve does not reach, upper cells 

 quadrate or ovate, lower linear, sinuous. Caps, erect, 

 oblong, smooth, with a small mouth, and on a longer 

 and thinner seta, lid with a long, straight, subulate 

 beak. Dioicous. 



Wet mountainous rocks by streams. 



November — April. 



