JUNGEliMANIA. 355 



that species. In its sterile state it may be confounded with some 

 Ibrms of Marsi/pel/a ciitartj'nKila or MarHiipclhi Funckii, but if l)racts 

 be found it is at once identified. 



Description or Plate CLIII. — Fig. 1. Plants natural size. 

 2. Portion of stem x 31 (G. & P. G29). 3-0. Leaves, flattened 

 out, X 32 (Loch Bray, M'Ardle). 7. Leaves x 31 (ditto). 

 8, 9. Leaves, flattened out, x 31 (G. &. P. 029). 10. Leaf x 31 

 (Loch Bray, M'Ardle). 11. Portion of leaf x 290 (G. & R. G29). 

 12,13. Bracts x 31 (Loch Bray, M'Ardle). 14. Perianth x 24 

 (ditto). 15. Cross-section of upper part of perianth x 31 (ditto). 

 16. Portion of the mouth of perianth x 85 (ditto). 17. Peri- 

 o'onial bract free, after Carrino-ton. 



32. Jungermania saxicola, Sc/irnder. 



Jungermania saxicola, Schrad. Syst. Samml. krypt. Gew. n. '.•7 (1797). 

 Diplo'phyllum saxicolum, Dum. Recueil p. 10 (1835). 



Dioicous, growing in thick patches or amongst mosses, medium 

 to largish size, of a brown, yellowish, red-brown, or rarely of an 

 olive-green colour. Stems simple or furcate, somewhat robust, 

 firm, branches proceeding from below the leaves, sub-postical, 

 between lateral and postical, but more postical ; about 15 cells in 

 diam. ; cortical cells dark and firm, about 40 to 50 cells round, 

 inner white, somewhat firm and distinct, walls firm ; radiculose, 

 rootlets long, close, hyaline, some stems destitute. Leaves hori- 

 zontally inserted, equitant, imbricate or contiguous, regular, almost 

 of equal size, somewhat oblique, amplexicaul, not decurrent, sub- 

 conduplicate, broadly ovate, bifid to the middle, rarely trifid, lobes 

 unequal, antical a little smaller than the postical, segments sub- 

 acute, obtuse or roundish, margin quite entire ; cells smallish, 

 roundish, roundish-oblong or subquadrate, cell walls thick, angles 

 thickened. No stipules. Bracts larger than the leaves, 2 to 4- 

 lobed to near the middle, segments acute, dentate. Bracteole 

 bifid to below the middle, segments acute, dentate ; sub-bracts 

 broadly ovate or subquadrate, bifid to about the middle, segments 

 roundish, irregularly dentate; sub-bracteole very small, obovate, 

 entire, or refuse. Perianth projecting about half beyond the 



