Pl.cell.fol. 13. HEPATICvE. 324. Herberts. 68$ 
1 . Herhertus Hibernicus . Irish Herbert . 
Thallus oblong, ribbed, forked, edge not in the least di- 
vided; outer calyx short, jagged; inner longly exserted, 
ovate, cylindrical; calyptra much shorter than the inner 
calyx. 
Jungermannia Hibernica, Hooker Jung . 78. 
Among mosses ; April. 
2. Herhertus Lyellii . LyelVs Herbert , 
T Halli in loose tufts, oblong, ribbed, rather branched, 
edge scarcely cut; outer calyx short, jagged, toothed; inner 
longly exserted, cylindrical, slightly plaited ; calyptra rather 
longer than the inner calyx. 
Jungermannia Lyellii, Hooker Jung. 77. 
On bogs; May. 
XI. 325. HERVERUS. Herver. 
Dioicous. Male. Anthers in a perigonium, ovate, sphe^ 
rical, clustered ; pedicells very short, attached to the mid- 
rib. — F em. Calyx on the lower face of the mid-rib, single, 
scalelike, becoming 2-lobed ; lobes deeply conduplicate, 
fringed ; calyptra reverse-ovate, spinous, irregularly torn ; 
capsule ovate, 4-valved, valves streaked lengthways and 
across, twisted ; seeds spherical ; elaters long, on the top of 
the valves; helices single, small at each end. — Thallus fron- 
dose, mid-ribbed. 
1. Herverus fur cat us. Forked herver. 
Thallus linear, ribbed, forked, membranaceous, above 
smooth, beneath and on the edge hairy. 
Ulva saxatilis furcata, latusculis et tenerioribus segmentis, Raii Syn. 
63,8. 
Jungermannia furcata, Lin. S. P. 1602 ; Engl. Bot. 1632 ; Hooker Jung. 
55 & 56. 
On rocks, heaths, and trees ; October to May. 
£. elongatus. Thallus large, long, streaked, 
y. ceruginosus. Thallus broad, tip dilated, very blunt. 
2. Herverus pubescens. Downy herver, 
Thallus linear, ribbed, forked, membranaceous, all over 
downy. 
Jungermannia furcata, Leers Herborn, 25. 
Jungermannia pubescens, Schrank Salisb. 231 ; Hooker Jung. 73. 
Jungermannia lomentosa, Hofftn, Germ. 2, 91. 
On wet alpine rocks. 
