sAh. x m .
£>..»5, J.,. -
JUNGERMANNIA MICROPHYLLA.
Jungermannia caule erecto pinnatim ramoso, ramis pendulis
capillaribus, foliis distantibus oblongo-quadratis,
stipulisque lato-quadratis minutis planis quadrifidis.
(T a b .L X X X . )
J. sertularioides.* Menz. M S S .
H a b . In sinu Dusky Bay dicto, apud Novam Zeelandiam,
D . Menzies. Ex Insula Guadaloupe miserunt Prof. 0 . Swariz
et D . Palisot de Béarnais.
Caulis palmaris, erectus, flexuosus, rigidus, pinnatim ramosus,
ramis distichis, raro secundis 'iterum divisis, capillaribus deflexis.
Folia minutissima, fusco-viridia, distantia, appressa,
plana vel superne subconvexa, oblongo-quadrata, quadrifida,
segmentis angustis strictis. Substantia reticulata, areolis
parvis, rotundato-quadratis. StipulcB foliis minores lato-qua-
dratæ, quadrifidæ, segmentis brevibus rectis angustis. F ru c tif-
catio ignota. ^
At T a b . LX. of this work is given a Jungermannia, {J. pendulina)
which is only to be distinguished from J. replans by the
different mode of growth and ramification. The present plant
altogether resembles that in its size, mode of growth, and ramification
; yet the extreme minuteness of the leaves and stipules,
and the distance at which these are placed from one another are
so striking, that none would perhaps hesitate at first sight in pronouncing
it distinct. But when these differences are pointed out,
(and they are very constant in all the specimens which I possess,)
nearly all that can afford marks of discrimination between the present
plant and J . pendulina are mentioned; for, on subjecting the
leaves of the former to a high power of the microscope, they will
be only found to differ from those of the latter in their extreme
minuteness, their more quadrate figure and nearly plane surface.
The specimens which I have received from Guadaloupe are
smaller, and of a paler and yellower green, but are like those of
Mr. Menzies in every other particular.
Fig. 1, J. inicrophylla, nat. size. Fig. 2, portion of a branch.
Fig. 3, upper side of a portion of the branch. Fig. 4, under side
of ditto. Fig. 5, leaf. Fig. 6, stipule.—magn.
* I should gladly adopt this expressive name, if it had not been applied
by some authors to J. setacea.