BRITISH HEPATIC.^. 75 



Jungennannia memorosa, Linn. Sp. PI. 3rd ed. p. 1598 ; Hedwig, Tlieor. p. 156, 

 t. 17 ; Bng. Bot. t. 607; Hook. Brit Jung. t. 21 (excl. var. omn.); Mitso. Brit. 2nded. 

 p. 232; Brit. Flor. ii. p. 113; Mackay, Fl. Hibern. ii. p. 61 ; Mart. Fl. Cryp. Erl. 

 p. 152, t. i, f. 27 et 28 ; Lindenb. Syn. Hep. p. 51 ; De Not. Prim. Hep. Ital. p. 10 ; 

 "N". ab E. Leberm. Eur. i. p. 203. 



Jungermannia nemorea, Lin. Syst. Nat. Ji. p. 706. 



Martinellia nemorosa, G-. & B. emend, in Nat. Arr. i. p. 692 ; Lindb. Manip. Muse. 

 2nd, p. 366. 



Eadula nemorosa, Dumort. Oomm. Bot. p. 112; etSect. Scapania, Syll. Jung. p. 41. 



Scapania nemorosa, Dumort. Rev. Jung. p. 14 (1835) ; G. L. N. Syn. Hep. p. 68 

 (1844); Fl. Danica, t. 2756, f. 2 ; Cogn. Hep. Belg. .p. 21 ; Gott. & Eat. Hep. Eur. 

 Ex. nn. 92, 224, 279, and 331 ; Del. et Grav. Hepat. Arden. n. 29 ; Moug. et Nest. 

 St. Voges. Rhen. n. 51 (lower tuft). 



Jungermannia nemorosa, foliis ctcutioribus, auritis, tenuissime denticulatis, Mioheli 

 Nov. Gen. p. 7, t. 5, f. 8. 



Lichenastrum auriculatum, pinnis minoribus crenat'is, Dill. Muse. p. 490, t. 71, f. 18. 



Hab. — Sbady banks and woods, comparatively local. New Forest, Hants, fr. 

 April 1812, and Cadnam Bog, C. Lyell, Esq. ! Bolton woods, abundant, fr. June 

 1860 ! Teesdale, R. Spruce. . Jersey, Mrs. McKenzie I Clapdale, Craven, Yorkshire ! 

 Penzance (gemmse), 1^. Curnow. Airykolme wood, and BUsdale, Yorkshire, W. Muddl 



Generally distributed throughout Europe and North America. 



Tufts 2 or 3 inches in diameter, compact, but not densely matted 

 together by rootlets, as in the following species. 



Stems rather stout, flexuose, of a brownish colour ; nearly blact, 

 naked, entangled, and creeping at the base. 



Rootlets scanty, white, pellucid, proceeding in bundles from the 

 bases of the lower, leaves, and rMzomatous shoots. 



Shoots (f. 16, 1) ascending or erect, from one to two inches 

 high, by ^" in diameter, simple or irregularly branched, the ramuli 

 patent, complanate, recurved at the apex ; producing innovations 

 from the involucral bracts and summits of the annual shoots, which 

 in turn produce fructification the following season. 



Leaves (f. 15, 2) rather distant, bifarious, alternate, increasing 

 in size upwards, carinate-complicate, semi-amplexicaul and decur- 

 rent on both ventral and dorsal aspects, divided for two-thirds of 

 their length (rarely half) into two unequal lobes, which are verti- 

 cally patent, and parallel with each surface of the stem, but some- 

 what decurved. Lower lobe (f. 15, 3) obovate,. obtuse or bluntly 

 pointed, -j^" to -j^" long, by -^q" broad, slightly convex, the ventral 

 margin reflexed, and decurrent for some distance ; lobule equal to 

 the diameter, of the larger lobe, cordate, acute, concave, incumbent, 

 or in the lower leaves occasionally reflexed, embracing and hiding 

 the stem, but rarely projecting beyond it; margins of both lobes 

 (excepting the carina) closely and regularly ciliate-dentate. 



Texture thin .but not translucent, shrinking and crisped when 

 dry. 



Colour pale dull-green or yellowish-green, the lower leaves 

 brownish. 



Cells (f. 15, 4) with uniformly thickened walls, discrete, the 



