298 HISTOEY OF BRITISH MOSSES. 



elegant little species^ forming a graceful net-work with its 

 branches, and making 



" Rough barren rocks grow pregnant with delight." 



11. JuNGERMANNiA TRiLOBATA, Linn. {Three-toothed 

 Jungermannia.) Stem creeping, flexuose, branched ; leaves 

 imbricated on the upper side, ovate, convex, obtusely tri- 

 dentate ^t the point; stipules broadly subquadrate, crenate ; 

 fruit dorsal; perianth oblong, subacuminate, the mouth 

 cleft on one side. — Eng. FL jij. 119 ; Hook. Br. Jung. 2)1. 76. 



Moist spots in high grounds, among rocks. A large 

 and easily recognized species. 



*^ Stifjides as large as the leaves or nearly so, and easily 

 confounded with them. 



12. JuNGERMANNiA JUNIPERINA, Sw. {Jwiiper-leaved 

 Jungermannia.) Stem erect, flexuose, nearly simple ; leaves 

 and stipules linear-lanceolate, bipartite, straight or falcato- 

 sccund; fruit terminal; perianth ovate, laciniated, bearing 

 perichajtial leaves. — Eng. Fl.p. 120 ; Ilook. Br. Jung.pl. 4. 



Among rocks on lofty mountains. A marked species, 

 with the habit and colour of Andreaa. 



C. Leaves bifid, lobes unequal, conduplicate. 

 * Lower or smaller segments plane. 



13. Jungermannia PLAxypHYLLA, Linn. [Flat-leaved 



