(J. concinnata.J T5RITISII JUNGERM ANNI/F.. 
The periehalial leaves (f. f. 6. 6. 7) are imbricated on all sides j the exterior resemble 
the cauline ones, except in being somewhat larger ; the rest giadually grow widei in 
proportion to their length, and become less scariose at the margin, firmly embracing 
and surrounding each other; the innermost appear to answer the purpose of a calyx, 
enclosing the peduncle in the form of a cylindrical tube, which, indeed, is scarcely 
distinguishable from a true calyx, except by the longitudinal suture, formed by the 
involuted margins (f. 7) ; in color and texture they resemble the other leaves, only 
that they are paler and have generally a purple or brownish tinge near the apex. 
Male Fructification I have never seen. 
Female Fructification terminal on the stems and branches. 
Calyx none that I have ever been able to discover. 
Calijptra (f. 8) ovate, pellucid, white, surrounded at the base with a few’ barren pistilla, 
some of which I have seen attached here and there to various parts of its surface. 
Peduncle white, succulent, scarcely a quarter of an inch long, striated longitudinally 
and, also, though less evidently, transversely. 
Capsule minute, nearly spherical, of a reddish and shining brown color, strongly punctated. 
It bursts into four equal, ovate segments, discharging numerous and extremely minute 
Seeds and spiral filaments, which I had not an opportunity of representing on the plate, 
not having received them till the engraving was finished : they are of a deep fulvous 
color ; the former exactly spherical, the latter somewhat longer than those of J. julacea, 
and composed of a double helix. 
This species grows profusely on the summits of the mountains of the North Highlands of 
Scotland, and appears to be equally common on the Continent. In Iceland it is likewise 
extiemely abundant, more so than any of the genus, and I suspect is every where more 
fiequently met with than J. julacea, which, as already observed under that plant, it greatly 
lesembles in many particulars. Its mode of growth is very uniform, and the even tops of all 
the shoots is striking, though it occasionally happens that specimens are found, from the centre 
ot the thick blunt ends of which are produced small, thin, cylindrical shoots, either simple or 
forked, as in Bartramia fontana or Fucus lumbnealis, destined in all probability to supply the 
tluwiib ot the following season, and then to grow in every respect similar to the stems they 
proceeded from. 
to Mi. L.ghtfoot, as has been also observed under the description of J. julacea, that 
t t U due ot fust distinguishing the two plants, and accurately defining their characters. 
*' as ’ ' n ^ced, long been well-known on the Continent, though not separated from 
\ ’ UU ' 11 name many of those authors have described it; misled, perhaps, by a 
uhait, in his Bcitrdge*, where he says that J. julacea has bifarious leaves. The 
* Bcitr. Band. in. p. 80. 
