Musecir ExorTrici.—WMenziesiant. 
JUNGERMANNIA MAGELLANICA. 
Jungermannia caule repente tripinnatim ramoso, foliis 
horizontalibus inzequaliter bilobis conduplicatis cilia- 
to-spinosis, lobis ovato-rotundatis, lobulis bifidis seg- 
mentis oblongis laciniatis uno szepissime claviformi- 
saccato, stipulis lato-ovatis emarginatis margine recur- 
vis (ramulorum bifidis laciniatis rarius claviformibus), 
calyce oblongo, ore dentato. (Tas. CXV.) 
J. Magellanica. Lam. Eneycl. Bot. v. 3. p. 28. 
Schwaegr. Hist. Muse. Hep. Prodr. p. 14. t. 1. 
J. elegans. Rich. MSS. 
Has. In Freto Magellanico. Commerson. In Staten Land prope 
C D. Menzies, 1787. 
ape Horn. 
Caules 3-4-pollicares, repentes, flexuosi, tripinnatim divisi, ra- 
late ovate apice emarginate, marginibus integerrimis, superne 
reflexis ; ramorum ovato-quadrate, semibifide, segmenti 
ginibus reflexis denticulatis; ramulorum bifide, segmentis lon- 
gis acuminatis, laciniatis, raro claviformi-saceatis (fig. 6.). 
Calyx terminalis lateralisque, oblongus, ore dentato. 
ek ae 
It is difficult, if not impossible, in a plant whose leaves and sti- 
pules vary so much in different parts of the same individual as in 
the present instance, to prevent the specific character from run- 
ning to an apparently unreasonable length. Many of the leaves 
have indeed the greatest affinity to those of J. palpebrifolia, al- 
ready figured in this work, (Tas. LXXI.) while the stipules o 
the two plants have no resemblance to one another, and the ra- 
mification of this is remarkably close and compact, and its fructi- 
fication quite peculiar. A more beautiful object for the micro- 
scope can hardly be imagined than the present species, particu- 
larly the ultimate branches where the leaves are thickly crowded 
and most exquisitely fringed at the margins. The size of the pe- 
richetial leaves is worthy of observation. 
Fig. 1, plant, va¢. size. Fig. 2, portion of a plant with fructifi- 
cation. Fig. 3, stem leafandstipule. Fig. 4, leaf from a branch 
with stipule. Fig. 5, leaf from an ultimate branch with stipule. 
Fig. 6, stipule with its claviform appendages. Fig. 7, portion of a 
leaf. Fig. 8 and 9, perichetial leaves. Fig. 10, calyx.—magn, 
