BRITISH JUNGE RM ANN IiE. 
C J- Hookeri. ) 
JUNGERMANNIA HOOKERI. 
(TAB. LIV.) 
Jungermannia, caule erecto, subramoso: foliis undique imbricatis, ovatis vel oblongo-ovatis, hie 
illic lobatis angulatisve: fructu terminali; calyce nullo; calyptiA magna, oblonga, carnosu, laevi. 
J. Hookeri. 'Engl. Bot. t. 2555. 
Hab. Growing, intermixed with J. multifida, by the side of a ditch, near the private 
road from Cadnam to Poultons, in the New Forest. Mr. Lyell. — Since found by the same 
gentleman, in August, 1813, in the moss of Kinnordy, Kerriemuir, Scotland. — It pro* 
duces fructification, both male and female, in the winter and spring months. 
Plant growing in small and scattered patches, generally of a dull green color. 
Roots : from a descending main branch (if I may so express myself), which appears to be 
altogether a continuation of the stem, and nearly equals it in thickness, arise several 
large subcarnose fibres, which shoot out in a horizontal direction : they vary much in 
length, generally exceeding a quarter of an inch, and are either simple or branched : 
their color is a dirty white, and the cellular structure is the same as that exhibited by 
the stem. 
Stems varying from one line to half an inch, rarely more, in length, erect, slightly flexuose, 
filiform, but not remarkably slender, for the most part simple, though a divided stem is 
now and then observable, and a young shoot or innovation occasionally arises from various 
parts of the plant. The color is greenish ; the texture closely cellulose. 
The leaves in the taller individuals are rather distantly placed, more crowded in the shorter 
ones : all of them are patent or erecto-patent, sometimes a little recurved. They are 
inserted without order on every side of the stem, and vary in regard to size in all parts of 
it, and equally so in figure : a few are rounded in their shape, but the greater number 
are either ovate or oblongo-ovate, or, occasionally, ligulate, plane, cut at the margin, 
though not deeply, yet in a manner so irregular, that they they will be more easily 
understood by a reference to the annexed plate, than by any description I am able to give. 
I may observe, however, that, near the extremity of a leaf, two opposite lateral notches 
