DIPLOPHYL L mr. 213 



pliijllum laxifoUtmi, for which it has been mistaken by Austin and 

 others. 



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

 (Eng. Bot. 2511). 2. Portion of stem x 24 (Glen Finnan, 

 Dr. Carrington). 3. Portion of stem x 31 (ditto). 4. Portion 

 of fertile stem x 24 (Delamere, Wilson k Carrington). 5. Upper 

 leaf X 24 (Tyn-y-Groes, Holt). 6. Upper leaf x 24 (Hb. Tayl.). 

 7, 8. Lower leaves flattened out x 24 (ditto). 9. Portion of leaf 

 X 290 (Delamere, W. & C). 10. Portion of leaf, near base 

 X 290 (ditto). 11, 12. Bracts x 24 (Hb. Tayl.). 13. Perianth 

 X 24 (ditto). 14. Portion of mouth of perianth x 85 (ditto). 

 15. Spores x 290 (ditto). 16. Perigonial bract x 24 (Tyn-y- 

 Groes, Holt). 



4. Diplophyllum Dicksoni [Hook.), Bum. 



Jmujerman'm ovata, Dicks. PI. Crypt. Brit. iii. p. 11, t. y, f. G (1793);? Lindb. 



Musci Scand. p. 7 (1879). 

 Jungermania Dicksoni, Hook. Brit. Jung. t. 48 (1816). 

 Diplophyllum Dicksoni, Dum. Recueil, p. IG (18;3o). 



Dioicous, growing in loose patches or amongst mosses, small, 

 of a pale yellowish-brown colour. Stems simple or rarely 

 branched, innovant branches arising from base of bracts, 

 apparently subpostical ; radiculose, rootlets ascending to apex of 

 stems, hyaline, long, delicate, stem slightly channelled antically, 

 cortical cells about 40, more distinct than the inner, walls flrmer, 

 inner soft, and somewhat indistinct. Leaves transversel}^ inserted 

 or slightly ascending, antical lobe more erect, sometimes erect to 

 erect-patent, equitant, contiguous or imbricate, to below the 

 middle unequally bilobed, complicate, lobes lanceolate, acuminate, 

 antical lobe smaller than the postical, margin entire, upper leaves 

 slightly serrulate ; cells smallish to medium, subquadrate or 

 roundish, filled witli nucleate bodies, cell- walls delicate, hyaline, 

 trigones small. Bracts ovate, bifid to about the middle, segments 

 lanceolate acuminate or obtuse, margin serrate. Perianth pro- 

 jecting about J- to h beyond the bracts, oval fusiform, deeply 



