Musctr Exorict.—Swainsoniani. 
HOOKERIA LANGSDORFFII. 
Hookeria caule elongato repente vage ramoso, foliis di- 
stichis compressis ovatis subacuminatis membranaceis 
submarginatisapice serratis, nervis duobus ante apicem 
evanescentibus, capsula ovata cernua, operculo hemi- 
sphzerico rostrato, calyptra basi 6-fida. (Tas. CXXI.) 
Has. Prope Rio Janeiro Brazilie legit Cl. Langsdorff ; com- 
2. 
municavit D. Swainson 
diaphana notatis. 
For this, as well as some other interesting Mosses and Lichens, 
I am indebted to my friend W. Swainson, Esq. of Elm-Grove, 
near Liverpool, who, in a journey which he lately made into the 
interior of the Brazils, kindly exerted himself in procuring crypto- 
the genus. Hookeria lete-virens may be 
by the size, 
Fig. 1, plant, nag. size. Fig. 2, portion of a branch with its 
leaves. Fig. 3, leaf. Fig. 4, portion of ditto to show the reticu- 
Jation. Fig. 5, capsule and operculum. Fig. 6, capsule without 
the operculum. Fig. 7, portion of the outer peristome, Fig. 8, 
portion of inner ditto. Fig. 9, calyptra.—magn. 
Vor. II. 
