LEJEUNEA. 47 



witli leaves 7 mm. to "85 mm. wide; leaves, iinticul lobe, '45 

 mm. X :) mm., ])Ostical '1 mm. x 'If) mm., antical, "45 mm. x '.\b 

 mm.,postical "1 mm. x I mm. ; cells '03 mm. x 'OW mm., 04 mm. 

 X "0275 mm., -04 mm. x (»;> mm. ; stipules, 25 mm. x "l mm. ; 

 segments, 075 mm., •'! mm. x "15 mm., seij^. "075 mm.; bract, 

 antical lobe 4 mm. x "25 mm., postical, "225 mm. x "125 mm. ; 

 bracteole '4 mm. x 2 mm., segments I mm. ; perianth, "8 mm. 

 X "5 mm. ; perigonial bract, antical lobe, 25 mm. x "2 mm., pos- 

 tical "2 mm. X 15 mm. ; spores, '025 mm. 



Hab. — On rocks, stones, trees or banks in damp shaded or, 

 more rarely, exposed situations. 



Moderately common. 1-1 8c. I. 



Found on the Continent and in North America. 



Obs. — This, the most generally distributed of British 

 Lejemiece, is abundantly distinct from any of the other 

 British species, with the exception of Lcj. pafcn-t, Lindb., and 

 Lcj. Jlaca (Svv.), which see for distinguishing characters. 



Description of Plate X. — Fig. 1. Plants natural size. 2. 

 Portion of stem, antical view x 31, var. iihnwiscula (Glena, S. 0. 

 Lindberg). 3. Ditto, postical view (ditto). 4. Ditto x 64 var. 

 carifolia (n. 273 G. & R. Hep. Eur.). 5, 0. Leaves x 31 (n. 

 435 G. k R Hep. Eur.). 7. Portion of leaf x 29U (ditto). 8. 

 Bract X 64 (Ingleton, W. H. P.). 9. Bracteole x 64 (ditto). 

 10. Perianth x 31 (n. 435 G. k W. Hep. Eur.). 11. Perigonial 

 bract X 64 (ditto). 



5. Lejeunea patens, Lindh. 



Lejexiuea 2)(it€iis, Lindlu-rg Acta Soc, Sci. Fenn. Hep. Hib. x. p. 1^2 (l^?.""). 



Monoicous, csespitose, small, very pale green or sometimes 

 white. Stems prostrate or sub-erect, irregularly and much 

 branched and interwoven. Leaves more or less closely imbricate, 

 from their base to the height of the postical lobe patent to erect o- 

 ])atent, then acutely patent-divergent, very much decurved and 

 well overlapping the stem, uneipially bilobed, antical lobe remark- 

 ably convex, especially when dry, obliquely ovato-elliptical or 

 very bluntly oval ; postical lobe 2-4 times smaller than the 



