Musc1 ExorTici.—WMenziesiani. 
JUNGERMANNIA MICROPHYLLA. 
JSingermannia caule erecto pinnatim ramoso, ramis pen- 
dulis capillaribus, foliis distantibus oblongo-quadratis, 
ae lato-quadratis minutis planis quadrifidis. 
AB. LXXX., 
J. sertularioides.* Menz. MSS. 
Has. In sinu Dusky Bay dicto, apud Novam Zeelandiam. 
« Menzies. Ex Insula Guadaloupe miserunt Prof. O. Swartz 
et D, Palisot de Beauvois. 
Caulis palmaris, erectus, flexuosus, rigidus, pinnatim ramosus 
.tamis distichis, raro secundis iterum divisis, capillaribus de- 
flexis, Folia minutissima, fusco-viridia, distantia, appressa, 
plana vel superne subconvexa, oblongo-quadrata, quadrifida, 
_ Segmentis angwtis strictis. Substantia reticulata, areolis 
parvis, rotundato-quadratis. Stipule foliis minores lato-qua- 
drate, quadvifide, segmentis brevibus rectis angustis. Fructifi- 
calio ignota, 
At Tas. LX. of this work is given a Jungermannia, (J. pen- 
dulina) which is only to be distinguished from J. reptans by the 
different mode of growth and ramification. The present plant 
altogether resembles that in its size, mode of growth, and rami- 
fication ; 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 pro- 
nouncing it distinct. But when these differences are pointed out, 
(and they are very constant in all the specimens which I possess,) 
nearly all that’ean afford marks of discrimination between the pre- 
sent plant and J, pendulina are mentioned; for, on subjecting the 
leaves of the former to a high power of the mi pe, 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 - microphylla, 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. 
