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Y a V'/ü .
BRYUM DEMISSUM.
Bryum caule perbrevl ramoso, foliis ovatis cuspidato-acu-
niiiiatis reticulatis, nervo excurrente, seta arcuata, capsula
curvato-pyriformi pendula. (Tab . XCIX.)’
Meesia deinissa. Hoppe et Hornsch. M S S .
Timmiae nov. sp. Schmidt M S S .
Bryum curvulum. Schleicher M S S .
H a u . In monte Cenisii, siijjra 7000 pedum elevationem reperi.
1814. Unicum parvulum c.-Espitem in summo cacumine alpis
Wingsfield Opdaliae Norvegia; transalpinre solummodo legit
D . Pro}. Schmidt. In alpibus Tyrolensibus. D. Prof. Horns-
chuck.
Caules ca;spitosi _ferrugine_o-tomentosi, vix duas lineas longi, ad
basin fastigiatini ramosi, sed, ut videtur, innovationibus pree-
cipue. Folia flavo-viridia, basi purpurascente, arete imbricata,
erecta, concava, ovata, cuspidato-acuminata, margine integerrima,
nervo fusco, superioribus, in acumen piliforme excurrente
praedita, reticulata areolis oblongis, grandiusculis. Seta
scmiuncialis, crassiuscula, flexuosa, superne insigniter arcuata.
Capsula matura flavo-rufescens, oblongo-pyriformis, curvata,
pendula. O.iiniiiutum. Operctdum comcum. Peristomìi externi
deiites 16 longiusculi, acuminati, transversim striati, albopellucidi,
basi aurantiaca, int. cilia saepissime per paria ad
apicem connexa, atque hic illic processubus transversalibus
unita. Calyptram non vidi.
1 first saw this singular moss in a botanical excursion made in
the summer of 1814, near’to one of the highest summits of Mont
Cenis. It was soon after communicated to me by the late lamented
Professor Schmidt as a new Timmia. I have again received
specimens from Prof.Hornschuch under the name o(Meesia
demissa, and from M. Schleicher under that of B iyum curvulum
It must be allowed, however, that in point of natural habit it has’
little or no connexion either with the Tim m ia ov Mee sia ; but
that if the figure of the internal peristome is allowed of sufficient
importance to characterize the genus, it must be arranged with
the former. To me its most natural place appears to be among
some of our well known Brya. To B . caspititium it approxi-
mates iiy its leaves, though they are of a laxer texture, and to
B , Zierii in the form of its capsule.
Fig 1, tuft of plants, nat. size. Fig. 2, single plant. Fig. 3,
leaf. Fig. 4, capsule. Fig. 5, operculum. F ig .6, portion of outer
peristome. Fig. 7, portion of inner ditto.—magn.
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