Musci Exorici.—Humboldtiani. 
DICRANUM CONCOLOR. 
Dicranum caule elongato ramoso, foliis undique vergen- 
tibus e basi anguste lanceolata longissime subulato-se- 
taceis subintegerrimis, nervo latissimo, seta flexuosa, 
capsula ovata striata strumosa, calyptra fimbriata. 
(Tas. CXXXVIII.) 
Has. In alto de Aranda, locis frigidis, prope Pasto, (regnum 
Novum Granatense) altit. 1560 hexapod. Humboldt et Bon- 
pland. 
Caules bi- triunciales, erecti, flexuosi, hic illic dichotome divisi. 
Folia undique vergentia, planiuscula, siccitate etiam e basi an- 
guste lanceolata, longissime subulato-setacea, flexuosa, pallide 
viridia, apicem versus subserrulata, nervo latissimo paginz fere 
totam partem occupante. Perichetialia reliquis similia, sed 
_lateribus involutis, Sef@ aggregate, flexuose vel curvate. 
Capsula flavo-fusca, inclinata, oblongo-ovata, sulcata, basi 
strumosa. Operculum conico-subulatum rufo-fuscum. Ca- 
lyptra dimidiata, basi elegantissime ciliata. Peristomium den- 
tibus 16, incurvis, rufis, fissis. 
ieee 
Th iesI d ibed belongs to a curious family of Dicra- 
num, along with D. Slexuosum, D. iretim.and D. tar Se 
all agreeing in general habit, in the broad nerve of the leaf, and 
in the ciliated border of the calyptra. From the former of these 
it differs in the much longer and twisted nature of the leaves ; 
from the two latter, in the striated and strumose calyptra; and 
still further from the last-mentioned species, in having the tips 
of the leayes of one uniform colour with the leaves themselves, and 
not at all diaphanous, 
Fig. 1, 1, plants, mat. size. Fig. 2, leaf, Fig. 3, leaf of pe- 
-Tichetium. Fig. 4, portion of ditto magnified to show the nerve. 
Fig. 5, capsule. Fig.6, annulus, Fig. 7, operculum. Fig. 8, ca- 
lyptra,—magn, . 
