Musct Exorici.—Menziesiani. 
JUNGERMANNIA SQUARROSA. 
Jungermannia caule elongato erecto subsimplici squa- 
moso, foliis densissime imbricatis distichis squarrosis 
subquadratis undulatis, bilobis, lobis cuspidatis inte- 
gerrimis vel unidentatis, stipulis magnis bifidis seg- 
mentis ovatis cuspidatis margine laciniatis. (Tas. 
J. squarrosa. Aenz. MSS. 
Has, In sinu Dusky Bay dicto. D, Menzies, 1787. 
Caulis palmaris, erectus, flexuosus, rigidus, squamosus, squamis 
minutis, lanceolatis, laciniatis, simplex vel ad apicem solummodo 
per innovationem divisus. dia fusco-lutescentia, densissime 
imbricata, disticha, squarrosa, semiamplexicaulia, late qua- 
drata, undulata, biloba, lobis subinequalibus patentibus cuspi- 
datis integerrimis vel basi hinc spinoso-dentatis. Substan- 
tia compacta, reticulis minutis. Stipule foliis duplo minores, 
late ovate, bifida, segmentis ovatis, cuspidatis, margine laci- 
niatis. Fructificationem non vidi, 
Sete eee 
So very thickly are the leaves and stipules crowded upon the 
stems of this plant, that it is not without great difficulty that 
their real structure is discoverable. It differs in many particulars 
from any species hitherto described, but comes nearest to one 
figured in the next plate from the Isle de Bourbon, and will pro- 
bably rank in the same division with J. trilobata. I have already 
noticed as being squamose, the stems of another Jungermannia 
(J. lamellata), though they are not so much so as in the present 
plant. 
_ Fig. 1, plants, nat. size. Fig. 2, portion of stem, leaves and 
stipules, seen from behind. Fig. 3, upper side of a portion of 
the stem and leaves. Fig. 4, stipule. Fig. 5, leaf. Fig. 6, cau- 
line scale.—magn, 
