Jungcrmannia.] HEPATICJL 127 



Lindenb. Syn. Hepat. p. 97.— Pollia, Cordcu—Dill. Muse. t. 74. 

 f. 41. — 3. hngifolia ; fronds elongated simple or only here and 

 there divided by innovations. J. endiviafolia, Dicks — y.furci- 

 gera ; fronds at the apex dichotomoiisly divided with narrow 

 innovations. 



Moist ground, frequent. — 0. Bogs and ditches. — y. Not uncommon in 

 rather dry situations, especially in the winter months. Fr. Spr. and 

 Aut.— This fine species may frequently be seen in damp shady places, 

 by the sides of springs and wells, with its white sparkling silvery threads, 

 which are of most rapid growth, bearing at their summit the pale-brown 

 capsule, which, when the valves are fully expanded, bears the spiral 

 filaments in a beautiful tuft or pencil in the centre. 



79. J. f areata, Linn, (forked Jungcrmannia); frond linear 

 dichotomous membranaceous costate glabrous above, beneath 

 and on the margin more or less hairy, fruit from the midrib on 

 the underside, perianth 2-lobed conduplicate the margin ciliated, 

 caiyptra obovate crisped. Linn. Sp. PL p. 1602. E. Bot. 1. 1632. 

 Hook. Br. Jung. t. 55, 56. Hobs. Br. Mosses, v. I. p. 110. Lin- 

 denb. Syn. Hepat. p. 94.— Dill. Muse, t 74. /. 45.-/3. elongate ; 

 frond larger more elongated and straighter. — J.furcata, 3. max- 

 ima ; Web. — y. aeruginosa; frond broader blue-green, the extre- 

 mities (except in the gemmiferous plant) dilated very obtuse. 

 J.frutieulosa, E. Bot. *. 2514-. — Riccia frtttieulosa, Dicks. Cr. 

 Fuse. \.p. 8. 



On trunks of trees and sometimes on low bushes, heathy ground, 

 rocks, &c, abundant.— 0. on rocks in subalpine countries.— y. on trees 

 in the West of England, (Mr. Wilson,) Scotland, and Ireland. Fr. 

 Winter and Spr.— The fructification of this, again, is very peculiar. 

 Anthers are found on the COSta, on the underside of the frond, enclosed 

 in and attached to a costate scale, rolle I up like a ball. Gemma appear 

 on the aeruginose car., terminating narrow prolongations of the forking 

 of the frond. 



80. J. pubescent, Scbrank, (downy Jungermannia) ; frond 

 linear dichotomous membranaceous costate pubescent <»n both 

 sides. Schrank, Salisb. p. 231. Hook. Br. Jung. t. 73. HoU. 

 />V. Mosses, v.2. n. L04. Lindenb. Syn. Hepat. p. 95. — /. tomen- 

 tosa, Hoffrn. 



Moist rocks, frequent in alpine situations. FV. unknown.— Although 



so nearly allied to the preceding as not to be distinguished but bj its 



larger Bize and its fronds thickbj downs on both Bides, yet it appears 



itant t<» these characters. The fruii has never been found; but 



anthers are fre [Uent and enclosed in a receptacle similar to that de- 

 scribed under J.furcala, only it is densely bauy. 



** I\ riiin'li double* 



81. J. LuellH. Hook. < tfr. LyelT* Jungermannia); frond ob- 

 long somen hat dichotomoiisly branched membranaceous costat e, 

 fruit from the costs above, perianth double the exterior very 

 short toothed and laciniated the inner much exserted cylindrical 

 ■nbplicatev- ■■ scales <>f the anthers much laciniated crowded. 



