108 HEPATIC.E. [Jungermannia. 



p, 73.— Bill. Muse. t. 70. f. 15, 16.— ,3. tridentata; leaves smaller 

 fewer with 3 sharp spiniform teeth at the extremity. J. triden- 

 ticulata, Mich. Am. v. 2. p. 278. 



Rocks in shady situations, especially in subalpine countries : yet Mr. 

 Li/ell finds it in the New Forest, Hants. /3. Mountains near Bantry, 



Miss Hutchins. Scottish mountains. Fr. . — Though perianths 



are by no means unfrequent on this plant, I am not aware that its perfect 

 fruit has ever been found in this country. 



4. J. decijnens, Hook, {deceptive Jungermannia); stems erect 

 flexuose nearly simple, lower leaves small ovate entire upper 

 ones rotundato-ovate or subquadrate with here and there a 

 spiniform tooth. Hook. Br. Jung. t. 50. E. Bot. t. 2537. 

 Lindenb. Syn. Hepat. p. 73. 



Rocks in heathy places, about Bantry, Miss Hutchins. Plentiful on 

 detached rocks in the woods near Killarney, Mr. Wilson; always barren. 

 — Mr. Wilson, to whom I am indebted, for numerous specimens, observes 

 that this is a good species, that the leaves have a thickened margin 

 omitted in the Brit. Jungermannhe, and the upper ones are appressed as 

 in J. compressa. 



5. J. Bonidna, Hook. (Bonian Jungermannia); stem erect 

 subsimple flexuose, leaves closely imbricated patent oblongo- 

 ovate concave bidentate at the point frequently falcato-secund, 

 fruit terminal, perianth ovate laciniated. Hook. Br. Jung. t. 39. 

 E. Bot. t. 2566. Lindenb. Syn. Hep. p. 74. 



Scottish mountains, rare; and almost wholly confined to moist rocks, 

 among other Jungermannice and Mosses, in the elevated parts of the 

 Clova and Cairngorm mountains. Dr. Greville has gathered it with 

 calyces, but these are of very rare occurrence, and the fruit of this most 

 distinct species is unknown. 



6. J. ptimilfj, With, (dwarf simple Jungermannia); stem 

 ascending nearly simple, leaves elliptical oblong, fruit terminal, 

 perianth oblongo- ovate acuminate plicate and contracted above, 

 the mouth minute dentato-ciliate. With. Bot. Arr. ed. 3. 



p. 866. t. 18./. 4. E. Bot.t. 2230. Hook. Br. Jung. t. 17. Lin- 

 denb. Syn. Hepat. p. 69. 



Rocky beds of rivulets, in subalpine countries. Fr. June. — A small 

 plant, with foliage of the colour and texture of./, cordifolia. 



7. J. lanceoldta, Linn, (lance-leaved Jungermannia); stem 

 procumbent nearly simple, leaves patent ovato-subrotund, fruit 

 terminal, perianth oblong cylindrical depressed and plane at the 

 top, the mouth contracted inciso-dentate. Linn. Sp. PL p. 1597. 

 Hook. Br. Jung. t. 18. Lindenb. Syn. Hepat. p. 71. 



Moist shady banks, and on the trunks of trees. Hudson, Withering, 



Light/out. Fr. . — Of this I have never seen British specimens : 



and I suspect the authors just mentioned may have mistaken some other 

 species for it. It is remarkable for the cylindrical, and, as it were, trun- 

 cated summit of the perianth, and for the very minute contracted mouth. 



8. J. cordifolia, Hook, (heart-leaved Jungermannia); stem 

 erect flexuose dichotomous, leaves erect concave cordate cir- 



