a? 
Muscr Exorici.—Gardneriani. 
GYMNOSTOMUM INVOLUTUM. 
Gymnostomum caule elongato subramoso, foliis ovato- 
lanceolatis margine insigniter involutis, nervo ad api~ 
cem attingente, seta elongata, capsula anguste cylin- 
dracea, ore annulato, operculo subulato. (Tas. CLIV.) 
Has. In Nepal. Hon. D. Gardner. 
Caules laxe cespitosi, vix unciam longi, simplices vel dichotome 
divisi. Folia intense~viridia, sublaxe undique disposita, erecto- 
patentia, siccitate crispa, ovato-lanceolata, subcarinata, mar- 
gine insigniter involuta, integerrima, nervo valido concolore 
ad apicem attingente sed non excurrente instructa, Periche- 
tialia reliquis similia. Seta caule paulo longior, erecta, flava. 
Capsula elongato-cylindracea, erecta. Os annulo elastico ho- 
rizontali, demum erecto et dissiliente, preditum. Ca/ypira di- 
midiata, anguste subulata. Operculum subulatum, capsula 
triplo brevius. 
ee 
This has much the habit of a Tortula ; but the capsule is alto- 
gether destitute of a peristome, though furnished with an annulus 
exactly as in Gymnostomum julaceum of this work. (TAB. 
XLII.)* On removing the operculum, a portion of the colu- 
mella, as it appears to be, always adheres to the inside of it, as 
may be seen at fig. 9. 
Fig. 1, plants, mat. size. Fig. 2, single plant. Fig. 3, leaf 
in its natural state. Fig. 4, leaf with the margin spread open to 
show its figure. Fig. 5, capsule with its calyptra. Fig. 6, cap- 
sule destitute of a calyptra. Fig. 7, calyptra. Fig. 8, opercu- 
lum. Fig. 9, section of the base of the operculum. Fig. 10, 
mouth of the capsule, with the annulus as it appears as soon as 
the operculum is removed. Fig. 11, mouth of the capsule with 
the annulus erect and breaking away by its elastic power.— 
magn, 
* Where, in the specific character, instead of ‘‘ folie convolutis” read 
perichatialibus convolutis.” 
