PLAGIOCIIILA. 277 



branches lateral, siibpostical, arising from axil of leaves or bracts. 

 Leaves patent at an angle of 40° to 60°, alternate, distant or con- 

 tiguous, much decurrent antically, oblong-oval, obovate or semi- 

 ovate, with few large teeth or spines on the upper margin, lower 

 margin entire, reflexed ; texture somewhat firm, cells smallish, 

 roundish ; walls rather thick, angles thickened, trigones wanting. 

 Stipules rudimentary, minute, bifid or trifid, or wanting. Bracts 

 larger than the leaves, with numerous teeth on the upper margin, 

 broadly ovate. Bracteole wanting. Perianth broadly obovate, 

 compressed, mouth wide, ciliate-dentate ; pistillidia numerous. 

 Male stems distinct, more slender and graceful, perigonial bracts 

 at the middle or end of the stem, catkin-like, small, closely imbri- 

 cate, about 5 pairs, broadly oval, lobulate, lobule 2-3 dentate ; 

 antheridia roundish-oval. 



Hab. — On rocks or at the base of trees, in woods and shad}^ 

 or exposed places, chiefly subalpine. Somewhat common. 



1. Penzance; Pe(h-uth, Cornwall, IF. Cnnioio; Devon, C.LyelL 

 2. Rufus-stone, New Forest, Hants, C. Li/eU. 7. Merionethshire; 

 Carnarvonshire, common, W. II. P. 9. Easgill, near Leek, West 

 Lane, A. Wilson; Grey garth Fell, West Lane, /. A. Wheldon. 



10. Bolton Woods, /. Nowell ; Ingleboro', /. NowelU J- G. Baker ; 

 Dent, G. Stabler ; Todmorden, A. Stansfield; Teesdale, Dr. Spruce- 



11, 12. Westmorland, G. Stabler ; Cumberland, frequent, IV. II P. 

 13. New Galloway, frequent, /. Mc Andrew. 15, 16. Moidart, 

 West Inverness, very common and variable, ascending to 1700 ft. 

 at least, S. M. Macvicar. 



I. Common. 



C. Jersey, Mrs. McKenzie ; St. Ouen, A(f(/. Martin. 



Found on the Continent. 



Dimensions. — Stems 1 to 2 inches long, diam. '25 mm. with 

 leaves 2-5 mm. wide; leaves 1*3 mm. x 7 mm., 1*8 mm. x '7 mm-, 

 1*9 mm. X -8 mm. ; cells -0175 mm. x '02 mm., '025 mm. x '02 mm., 

 •025 mm. x -02 mm., '03 mm. x "02 mm.; bracts 1-9 mm. 

 xl*9 mm.; perianth 2'5 mm. x 2* mm.; perigonial bracts 

 1- mm. X 75 mm.; lobule 'b mm. x '3 mm.; antheridium 

 •3 mm. X '275 mm. 



