BRITISH JUNGERMANNLE. 
( J. Tamarisci .) 
Female Fructification always terminal upon short ramuli. 
Calyx (f. f. 8. 9. 10) three-fourths of a line long, obovatc, smooth, plane on its upper 
surface, below projecting with a blunt longitudinal ridge or angle : the mouth U 
formed by a long and acute tubular point, which divides into four equal segments 
for the escape of the capsule. 
Calyptra (f. 11) obovate, or rather pyriform, yellowish-white, subcarnose, reticulated, 
lipped with a long style (f. 12), longitudinally and transversely striated; at the apex 
a little dilated. 
Peduncle projecting a very short way beyond the calyx, white, succulent, vasculose. 
Capsule (f. f. 9- 10) exactly spherical, of a pale reddish-brown or fulvous color, longi- 
tudinally furrowed. It divides into four equal, acute, ovate valves. Within, at the 
base, is seen the orbicular, semipellucid, greyish extremity of the footstalk, around 
which and upon its margin the valves appear to be situated. 
Seeds and spiral filaments numerous, fulvous ; the former (f. 14) are spherical, minute, 
tuberculated ; the latter (f. 13) composed of a single helix, enveloped in a transparent 
tube, as is the case in J. dilatata and J. Ilutchinsiee. 
J. Tamarisci is by no means so common a species as the one last described. It inhabits 
more exposed situations, and is generally found on the ground, on low bushes, and rocks, 
most plentiful in heathy and sub-alpine districts ; where it forms large straggling patches, 
conspicuous from their deep reddish-brown or purple color, which, however, it may be 
remarked, varies to a green in shady situations ; and the whole of the under side of the plant, 
but more especially the auricles and stipules, are generally of a yellowish or brownisli-green. 
Under the description of J. dilatata I have mentioned the characters which will most 
readily help to distinguish the two species : to these I may add, that the present plant has a 
more pinnated ramification, and that its calyx is entirely destitute of tubercles. The fertile 
branches are always short; the perichietial leaves acute, strongly serrated, and, even before the 
appearance of the calyx, in those ramuli which are destined to produce it, this peculiarity is 
evident : in this state, however, the auricles do not seem to be so much laciniatcd (see f. f. O'. 0). 
Roth is the first person who has remarked this circumstance, anil it is from his having done 
so, as well as from his description of the stipule, t' at I have been induced to refer his J. dilatata 
to my Tamarisci. Under the name of J. tamari. ifolia he seems to have described dilatata. 
Lamarck, in the Flore Francaisc, says that this spjcies has " La game cylindrique, composee de 
feuilles dentelccs,” which is by no means the case; nor have 1 ever seen the capsule, as he 
observes, elsewhere, " d’ un noir luisant.” 
Dillcnius lias well distinguished the habit of this species. " Tenuiores ac longiores, ” are 
his words, “ ac Lichenastrum imbrication minus, squamis convexo-concavis ( J . dilatata) habet 
surculos, Tamarisci Narbunensis non absimiles, magis ramosos et. magis libcro.s, a corticibus et 
saxis, quibus adnascitur, abscedentes, et plcrumque pendulos, pluribus sibi incumbentibus, 
colore in junioribus et non florentibus plantis obscure viridi, in florentibus ut plurimum subfusco, 
rubiginoso, et atro-rubente.” I have not observed, however, that the difference in color arises 
from the age of the plant, or that it depends upon its barren or fertile state. 
