Musci Exortic:.—Dicksoniani. 
WEISSIA CILIATA, © 
Weissia foliis lingulatis longissime ciliatis. (Tas. 
CLXXI1.) 
Has. Ex insula Ternate accepit D. Dicksonus. 
Caules densissime cespitosi, vix semiunciam longi, simplices vel 
innovationibus (ut videtur) ramosi, ferrugineo-tomentosi. Folia 
pallide viridia, laxe sed undique disposita, subflexuosa, lingu- 
lata, planiuscula, marginibus subincrassatis, undique nervoque 
superne, ciliis longissimis distantibus albis instructa. Sud- 
stantia mollis, reticulata, areolis parvis, rotundatis, inferne 
membranacea, pellucida, pulcherrime reticulata, areolis mag- 
nis oblongo-quadratis. Seta terminalis, breviuscula. Capsula 
ovata, erecta. Operculum conico-rostratum, rostro capsula 
paulo breviore. Calyptra junior, integra, demum lateraliter 
fissa, dimidiata, Peristomium e dentibus 16 longiusculis. 
A more singular or beautiful object for the microscope in the 
whole order of Afusci.does not exist than the subject of the an- 
nexed plate. There is a peculiar delicacy and transparency about 
the foliage, the lower part of which is singularly loosely cellular, 
and the margins and nerve above are beset with distantly placed 
hairs, in a manner totally unlike any other moss that I am ac- 
quainted with. The fructification seems to be rare. Among 
several specimens which I possess, I was able to find only one 
which had perfect fruit. It grows on half-decayed wood, 
Fig. 1, tuft of plants, mat. size. Fig. 2, single plant. Fig. 3, 
leaf. Fig. 4, portion of ditto. Fig. 5, young calyptra. Fig. 6, 
capsule and operculum, Fig. 7, fully formed calyptra. Fig. 8, 
teeth of the peristome.—magn, 
