Muvusci ExorTtici.—WMenziesiani. 
JUNGERMANNIA LOBULATA. 
Jungermannia caule repente ramoso, foliis distichis ho- 
rizontalibus ovato-rotundatis subeequaliter bilobis, lo- 
bis conduplicatis inferioribus saccatis, stipulis rotunda- 
tis planis emarginatis, calyce oblongo-ovato levi trian- 
gulari. (Tas. CXTX.) 
Has. In insula Staten Land dicta, prope Cape Horn, D. Men- 
zies, 1787. 
Caules vix unciam longi, flexuosi, subpinnatim ramosi, ramulis 
brevibus. Folia fuscescentia, laxe imbricata, horizontalia, 
disticha, subzqualiter biloba, lobis conduplicatis ovato-rotun- 
datis, swperioribus convexis integerrimis inferiortbus saccatis 5 
substantia compacta cellulis minutis punctata. Perichetialia 
duplo triplove majora, oblonga, lobulis explanatis subequaliter 
acutis. Stipule parve, rotundate, plane, apice acute emar- 
ginate, marginibus hic illic denticulo instructis; calycin multo 
majores, oblong, subbifide. Calyx terminalis, levis, fusco- 
purpureus, oblongo-ovatus, dorso plano facie inferiore angulo 
longitudinali prominente. 
There is a peculiar slenderness and neatness about this plant, 
which at first sight distinguishes it from its very near affinity the 
European J, dilatata; and in addition to this, 1 may observe 
another point of distinction between them, which is, that in this 
species the smaller lobe is so much larger, as to be almost equal 
in size to the larger one, and that the calyx is much more atte- 
nuated, and perfectly free from tubercles. 
Fig. 1, 1, 1, plants, nat. size. Fig. 2, portion of a fructified 
stem, upper side. Fig. 3, ditto, inferior side. Fig. 4, leaf and 
stipule, Fig. 5, stipule. 
