06 HEPATIC^. [Jungermannta. 



c. Leaves bi/id, lobes unequal, conduplicate. 

 * Lower or smaller segments plane. 



64. J. platyphylla, LINN. Stem pinnate; leaves unequally 

 2-lobed, the upper lobe rotundato-ovate, nearly entire, or spi- 

 nuloso-dentate, the lower ligulate, entire, the stipules entire or 

 dentate ; fruit lateral ; calyx ovate, compressed, the mouth trun- 

 cated, inciso-serrate. Linn, sp.pl. p. 1600. Hook. Br. Jung. t. 

 40. J. Icevigata, Schrad. SammL 2, p. 6. Hook. Br. Jung, 

 t. 35. 



On rocks and stones ; common. This species is subject to many 

 remarkable varieties ; as of lighter colour, glossy surface, size, degree 

 of serrature of the leaves. At Aooreagh River, near Killarney, is a 

 state with lurid leaves, small size, the lower lobe wider than the upper 

 and totally unconnected with it. This complete separation of the two 

 lobes also is found on specimens on Dunkerron Castle. 



65. J. ciliaris, LINN. Stem pinnate ; leaves convex un- 

 equally 2-lobed, both lobes ovate bipartite, elongato-ciliate ; 

 fruit lateral ; calyx obovate, the mouth contracted, toothed. 

 Linn. sp. pi. p. 1601. Hook. Br. Jung. t. 65. 



On Brandon Hill : sterile. 



66. J. Woodsii, HOOK. Stem bi-tripinnate ; leaves convex, 

 unequally 2-lobed, the upper lobe bipartite, spinuloso-dentate, 

 the lower minute, oblong, nearly entire ; stipules large, ovate, 

 bipartite, spinuloso-dentate, with the base spurred on each side. 

 Hook. Br. Jung. t. 66. 



On Mangerton, Mr. J. Woods. Between large stones at the side 

 of the Devil's Punch Bowl, Mangerton. The larger size, and more 

 distant and acute branches, readily distinguish this from the preceding, 



67. J. tomentella, EHRHART. Stems bipinnate; leaves nearly 

 plane, unequally 2-lobed, capillari-multifid, upper lobes bipartite, 

 the lower minute; fruit axillary ; calyx oblongo-cylindraceous, 

 hirsute, the mouth open. Ehrh. Beit. 2, p. 150. Hook. Br. 

 Jung. t. 36. 



In woods and marshes ; common. The leaf sometimes splits into 

 four laciniae. On the tops of the shoots there occur, at Blackwater, 

 County of Kerry, clusters of linear, jointed bodies not enclosed in any 

 calyx. 



* * Lower segments of the leaves involute. 



68. J. Mackaii, HOOK. Stem creeping; leaves unequally 

 2-lobed, the upper lobe rotundate, the lower minute, involute ; 

 stipules large rotundato-obcordate ; fruit lateral as well as ter- 

 minal ; calyx obcordate, compressed, gibbous below, the mouth 

 contracted, toothed. Hook. Br. Jung. t. 53. 



On the faces of perpendicular rocks, especially limestone ; common, 



69. J. serpyttifolia, DICKS. Leaves unequally 2-lobed, the 



