Muscir Exorici.—JJenziestani. 
JUNGERMANNIA DENSIFOLIA. 
Jungermannia caule erecto subsimplici, foliis dense bi- 
fariam imbricatis ciliatis conduplicatis profunde bilo- 
bis, segmentis zequalibus oblongis. (Tas. XXXVI.) 
Has. Staten Land Americe meridionalis. D. Menzies, 1787. 
Caulis 3-4-pollicaris, erectus, strictus, plerumque simplex. Fo- 
lia exacte disticha, dense bifariam imbricata, horizontalia, 
oblonga, arcte conduplicata, fusco-viridia, pulcherrime ciliata, 
profunde biloba, lobis vel potius segmentis oblongis, undulatis, 
subtortis. Substantia mollis, reticulata, areolis parvis rotun- 
datis, 
There is a striking peculiarity in this plant from the regularly 
distichous, horizontal, and conduplicate foliage; circumstances in 
some degree belonging also to J. albicans, to which this plant in 
natural habit is allied. Here, however, the leaves have their 
lobes and segments equal in length, and their vente margins 
most beautifully ciliated. 
It is probable that the fructifieation of this plant will be found 
to resemble that of J. albicans j—unfortunately, there is no ap- 
pearance of any in Mr. Menzies’s specimens, 
Fig. 1, plant nat, size. Fig. 2, portion of stem with the leaves. 
Fig. 3, leaf. Fig. 4, portion of ditto.—magn, 
