334 HEPATIC^. 



larger cells, no bracteole, perigonial bracts with usually an antical 

 basal tooth. 



Description of Plate CXLII. — Fig. 1. Plants natural size. 

 2. Fertile stem x 24 (C. k P. n. 109). 3. Male stem x 16 

 (a. & R. n. 265). 4. Leaf x 24 (Dolgelly, Dr. C. & W. H. P.). 

 5. Ditto (Staveley, Q. Stabler). 6-9. Ditto (Ben Nevis, Dr. Car- 

 rington). 10. Portion of leaf x 290 (Staveley, G. Stabler). 

 11. Bract X 24 (Dolgelly, Dr. C. & W. H. P.). 12, 13. Ditto 

 (C. &P. n. 109). 14. Bracteole x 24 (ditto). 15. Ditto x 16 

 (Dolgelly, Dr. C.&W.H. P.). 16. Pistiilidium x 85 (Ben Nevis, 

 Dr. C). IT. Perianth x 24 (Dolgelly, Dr. G. & W. H. P.). 

 18. Spores x 290 (ditto). 19. Elaters x 290 (ditto). 

 20, 21. Perigonial bracts x 24 (C. & P. n. 109). 22. Antheri- 

 diam x 85 (ditto). 23. Gemmas x 290 (G. & Pv. n. 190). 



21. Jungermania gelida, Tai/I. 



Jungermania gelida, Taylor, Journ. of Bot. p. 277, ii. 5 (1845); G. L. N. Syn, 



Hep. p. 67G (1847) ; Dum. Hep. Eur. p. 79 (1874). 

 Jungermania alpestris, var. gelida, Cooke, Hanclb. Brit. Jung. p. 185 (1894). 



Dioicous, growing intertwined in tufts of Cesia concimiata, 

 small, reddish-brown at the apices, below, and old stems brown in 

 colour. Stems creeping, or ascending, simple or innovant near 

 apex, flexuose, filiform, graceful, 10 cells in diameter, cortical cells 

 20-30, somewhat similar to the inner ones ; radiculose, rootlets 

 plentiful, long, whitish. Leaves approximate, erecto-patent, 

 secund, subrotund, bifid to 1 or ^, rarely trifid, segments acute, 

 unequal, incurved, sinus obtuse or acute ; cells small (large 

 for size of plant), roundish ; lumen filled with brownish granules ; 

 walls thick, angles thickened. No stipules. 3 and $ not been 

 seen. 



Dimensions. — Stems ^ to 1 inch long, diam. "15 mm., with 

 leaves "5 mm, leaves "5 mm. x "4 mm., sinus "l mm., '8 mm. 

 X '6 mm., sinus "2 mm., "7 mm. x '7 mm., sinus '2 mm., '7 mm. 

 X '6 mm., sinus "15 mm., cells "02 mm. 



Hab. — -Scotch Alps growing intertwined with Cesia concinnaia. 



