BRITISH JUNGERMANNIiE. 
( J. pinguis J 
JUNGERMANNIA PINGUIS. 
(TAB. XLVI.) 
Jungermannia, fronde oblongft, decumbente, enervi, carnoslt, supra planiusculfi, subtiis tumidli, 
hie illic divisa, margine sinuate : fructu ex inferiore parte prope marginem egrediente ; calycibus 
brevissimis j ore dilatato, fimbriato ; calyptra exserta, oblougo-cylindracea, lievi. 
Jungermannia pinguis. Linn. Sp. PI. n. p. 1602. Syst. Nat. n. p. 70 6 . FI. Suec. p. 403. 
Scop. Cam. n. p. 351. Leers, Herb. p. 252. Schrank, Bavar. n. p. 501. Weis, Plant. 
Crypt, p. 107. Weber, Spicil. FI. Goet. p. 158. Willd. Ber. p. 343. Oeder, Enum. 
PI. FI. Dan. p. 43. Villars, iv. p. 926. Roth, Germ. 111. p. 411. Hoffmann, Germ. 
11. p. 91. Schmidel, leones, p. 136. t. 35. Relh. Cant. p. 440. Huds. Angl. p. 517. 
Lightf. Scot. 11. p. 7S9. Lamarck, Encycl. Bot. in. p. 286. With. p. 851. Engl. 
Bot. hi. t. 185. 
Marsilea media pinguis, pallide virens, foribus majoribus nigricantibus, ad foliorum latera 
egredientibus. Micheli, Nov. Gen. p. 5. t. 4. f. 2. 
Lichenastrum capitulis oblongis, juxta foliorum divisuras enascentibus. Dill. Muse. t. 74. 
f. 42. (excl.fig. r. s. k.J 
Jungermannia fronde foliosa, lacerd, ex latere florifera. Hall. Helv. m. p. 63. n. 1S84. 
jS. angustior; fronde elongata, sublineari, simplice vel subpinnatim raniosa. 
Hab. Extremely moist and generally shaded places in marshes ; sometimes also, though 
not frequently, growing under the water in shallow rivulets and stagnant pools . — S is 
found plentifully at Herringfleet, by Mr. Turner, among Conferva; and other aquatic 
plants, in pools of water. — (The fructification, both male and female, seems to be not 
uncommon during most- of the summer months.) 
Plant usually growing in loose and straggling patches, sometimes, however, compact and clustered. 
Roots, a few minute fibres, scattered about various parts of the under side of the plant. 
Some specimens I have observed to be quite destitute of them. 
Fronds from one to two, and even three inches long in the var. 3 , procumbent and often 
imbricating each other, sometimes nearly erect, of an oblong figure, narrowest at the 
