LEJEUNEA. 65 



wing, above whicli the margin is slightly incurved, the fold 

 gradually increasing in size until near the apex, where another 

 erect horseshoe-shaped lobe is observed, which is of an extremely 

 delicate texture and is enclosed in the tubular portion of the 

 antical lobe ; postical lobe about three times smaller than the 

 antical, oval or subquadrate with rounded corners, convolute ; 

 texture delicate, cells smallish, elongate, 4-, 5-, and 6-angled, walls 

 thin, very slightly thickened, trigones absent. Stipules at the 

 base of each leaf, plane, appressed to the stem or a little patent, 

 oblong-cuneate, bipartite or deeply (to two-thirds) bifid, segments 

 patulous, linear-subulate, 3 to 4 cells wide at their base. Female 

 flowers lateral ; bracts 2, 3 pairs, minute, erect and closely ap- 

 pressed to the perianth, subquadrate or oval, apex retuse, emarginate, 

 entire or irregular. Perianth i-elatively large, almost as long as 

 the leaves, projecting three-fourths beyond the bracts, oblong, 

 attenuated at the base, widening towards the apex, obtusely 

 5-angled, angles furnished with one or two horns ; similar horns 

 are found on other parts of the upper portion of the perianth, 

 apex depressed or flat, mouth closed at first, afterwards slightly 

 opened, contracted, margin irregular. Caiyptra pyriform, com- 

 posed of thicker and smaller cells than the perianth. Capsule 

 oval. Spores minute. Androecia not known. 



Dimensions. — Stems J inch long; leaves, antical lobe 1"25 

 mm. X -35 mm., postical "5 mm. x '2 mm., antical 1-5 mm. x -45 

 mm., postical "5 mm. x '25 mm., upper inner lobe '3 mm. x '15 

 mm., basal lobe "3 mm. x "225 mm., '3 mm. x "25 mm.: cells 

 •025 mm. x '025 mm., "02 mm. x "035 mm., '02 mm. x '04 mm. ; 

 stipules '25 mm. x "15 mm. at the middle, segments '175 mm. ; 

 bracts "45 mm. x '35 mm., '45 mm. x -3 mm., "45 mm. x 25 mm. ; 

 perianth 1" mm. x -4 mm., -9 mm. x '4 mm. ; caiyptra "6 mm. x 

 "35 mm. ; capsule "375 mm. x "2 mm. ; spores "01 mm. 



Hab. — In minute, pale yellowish-green tufts, on rocks, 

 trees, or furze bushes. Extremel}^ rare. 1. Trevaylor, Cornwall, 

 /. Ralfs, IF. Curnow.. 7. Tyn-y-Groes, Merionethshire, //o// and 

 Wild. 12. Lodore, Cumberland, G. Ly ell and W. 11. P. Stone- 

 thwaite, Cumberland, -/. U. Byrom and W. H. P. 16. Moidart, 



E 



