Pl. cell. fol. 13. HEPATICAL. 324. Herbertus. 685 
”. al La LCL aeetey 
1 Hlerberts Hibernicus. Trish herbert. 
Lhallus 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. 
Patlavrerirtu, 
2. tdonbertus Lyellii, Lyells herbert. 
Thali 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. 17. 
On bogs; May. 
XI. 325. HERVERUS. Herver. 
Dioicous. Mae. 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 furcatus. Forked herver. 
Thallus linear, ribbed, forked, membranaceous, above 
smooth, beneath and on the edge hairy. 
Ulva saxatilis furcata, latusculis et tenerioribus segmentis, Rati Syn. 
- 63,8. ~ 
 Jungermannia furcata, Lin. 8. P. 1602; Engl. Bot. 1632 ; Hooker Jung. 
55 & 56. 
On rocks, heaths, and trees; October to May. 
8. elongatus. Thallus large, long, streaked. 
y- eruginosus. Thalius broad, tip dilated, very blunt. 
2. Herverus pubescens. Downy herver. 
Thallus linear, ribbed, forked, membranaceous, all over 
downy. 
Jungermannia furcata, Leers Herborn, 25. i 
Jungermannia pubescens, Schrank Salish. 231; Hooker Jung. 13. 
Jungermannia tomentosa, Hoffm, Germ, 2, 91. 
On wet alpine rocks. : 
