Musci Exortic:1.—Gardneriani. 
PTEROGONIUM FLAVESCENS. 
Pterogonium caule repente, ramis pinnatis compressis, 
foliis undique imbricatis erectis lanceolato-acuminatis 
planiusculis striatis enervibus, seta longa, capsula cy- 
lindracea, opereulo rostrato. (Tan. CLV.) 
Haz. In Nepal. Hon. D. Gardner, 
Caules repentes, vage ramosi, ramis pinnatis compressis. Folia 
flavo-viridia, mollia, erecta vel paululum patentia, lanceolata, 
acuminata, planiuscula, striata, integerrima, omnino enervia. 
Perichetialia magis attenuata, striis nullis. Seéa subbiuncialis, 
erecta, flava. Capsula cylindracea, pallide fusca. Operculum 
e basi convexa, rostratum, rectum. Calyptra dimidiata. Pe- 
ristomium minutum, e dentibus 16, subulatis, transversim stri- 
atis, sordide rufis, linea media longitudinali notatis. 
Pea an On 
At first sight this certainly comes very near to Pt. aureum, 
figured at Tas. CXLVII. of this work. Here, however, inde- 
pendent of the very different colour and want of gloss, the shape 
and texture of the leaves will be found to be unlike; the branches 
are here compressed, there cylindrical. The capsules in Pt. fia- 
vescens are cylindrical, in Pt. aureum oblong. The peristome is 
different also, and the present is much the larger plant. 
Fig. 1, plants, mat. size. Fig. 2, portion of a stem with the 
perichetium. Fig. 3, leaf. Fig. 4, perichetial leaves. Fig. 5, 
capsule, Fig. 6, calyptra. Fig. 7, mouth of the capsule with 
wuts peristome. Fig, 8, teeth of peristome.—magn, 
