Musci Exoric:.—AHumboldtiani. 
BARTRAMIA LONGIFOLIA. 
Bartramia caule elongato ramoso, foliis patentibus lon- 
gissimis subulatis fiexuosis minute serratis, setis lon- 
giusculis. (Tas. LXVIII.) 
Has. In devexis udis frigidis, montis Quindiu, super granato, 
altitudine 1400 hexapod. Humboldt et Bonpland, 
Caulis 3-pollicaris et ies, erectus, flexuosus, spe ramosus. 
Folia sordide viridia, arcte imbricata, patentia, longissime su- 
bulata, flexuosa, per totam fere marginem minute serrata, basi 
vaginata, nervo latiusculo, obscuro. Sete terminales, demum 
laterales, vix unciam long, erecte, flexuose, purpuree, Cap- 
sula globosa, striata. Operculum conicum, obtusum, 
From all the hitherto known species of Bartramia the present 
may be easily distinguished by its very long, spreading, flexuose 
and subulate leaves, That to which it most nearly approaches 
is the variety called crispa of B, pomiformis; but, independently 
of the greater length and narrowness of the leaves in the plant 
now under consideration, the nerve is by no means so distinct, 
but vanishes upwards into the substance of the leaf, as in B. ithy- 
phylla, Its habit too resembles that of B, squarrosa of Turner, 
(B. patens Schwaegrichen,) but differs from it in wanting the 
very strait and rigid leaves, 
Fig. 1, plant, nat. size, Fig. 2, leaf. Fig. 3, portion of do. 
Fig. 4, capsule,—magn, 
