362 
ST. HELENA. 
losus varie modo ramosus. Folia a basi brevi erecta, ad insertionem 
angustata, subito recurva patentia stricta subsecundave, sensim longe 
angustata, planiuscula, anguste striata, nervo angusto excurrente, 
margine minute serrulata, cellulis angustis elongatis papillis minutis, 
ad margines partis folii erectis oblongis latis pellucidis in seriebus 
4— G dispositis areolata. — Hab. Tristan d’Acunha ; plentiful on banks, 
but sterile, Milne. 
Stems three inches high, branched dichotomously, subfastigiate or 
subpinnate, without or with only very few rootlets here and there. 
Foliage straw-coloured, not much altered in drying. Leaves less 
than two and a half lines long. 
A smaller species than B. giganlea, from Bourbon, with narrower 
leaves, having a different areolation. 
Bryum, Linn. 
925. *B. argenteum, Linn. Sp. Plant. 1586. Melliss.— Earthy 
banks on the high land, forming a soft silvery carpet. The speci- 
mens belong to the form usually designated as var. j3 lanatim. 
Two other species of Bryum exist in St. Helena ; one is near to 
S. rigidum, a Brazilian moss, but as only a few leaves have yet been 
seen, nothing further can be said respecting it ; the other may be 
one of the forms of B. dichotomum, so common in most parts of the 
world. Of this a few imperfect barren stems are all that assure the 
presence of this or some allied species. 
Hookeria, Smith. 
Sect. Omaliadelphus, C. Mueller. 
926. *H. pallidifolia, sp. nov. — Monoica, laxe ca 3 spitosa de- 
pressa. Caulis subpinnatim divisus. Folia compressa, lateralia patentia 
oblongo-lanceolata acuta iutegerrima apice subcrenulatave, parum 
concava, plerumque assymetrica, latere uno inflexo complicato, nervis 
binis brevibus inconspicuis, cellulis angustis elongatis areolata, peri- 
chaetialia erecto patentia, externa ovata in acumen latiusculum sub- 
crenulatum educta, interna usque ad apicem vaginulae inserta, late 
ovata acuta. Theca in pedunculo rubro Levi ovalis inclinata, operculo 
rostrato. Calyptra apice lajvis basi striata? — Hab. Amongst the 
grass on the high land ; a bright-green moss. Dr. Hooker, Melliss ; 
