R
T
POLYTRICHUM LONGISETUM.
Polytrichum caule elongato siibsimplici, foliis patentibus
lanceolato-subulatis planis rigidis integ'crriinis, nori’o
latissimo, seta longissima, capsula ovato-tctragona,
operculo rostro subæque longo. (T ab. LXVI.)
H a b . In m onte Q u in d iu , regione tem p e ra ta . (Andes de Ciindi-
n am a ra .) Humholdt et Bonpland.
Caidis 3-4-pol!icar¡s, erectus, rigidus, simplex vcl divisus. Folia
arcte imbricata, patentia, (siccitate erecta,) rigida, nigro-fus-
ca, lanceolato-subidata, margine plana, omnino integerrima,
nervo stricto totam partem folii occupante. Se/a palmaris et
ultra, flexuosa, flavo-rubra, ob caulis innovationes sæpe late-
ralis. Capsula erecta, vel demum horizontaliter inclinata,
ovato-tetragona. Operculum longe rostratum, rostro capsulæ
subæque longo, curvato.
In the present species the leaves are remarkable in having the
nerve occupying the entire breadth of the leaf, in the margins of
the leaves being not in the least involute, nor at all serrated.
The leaves are likewise more patent than in any other individual
of the genus with which I am acquainted; the fruitstalks are
longer in proportion to the size of the plant, as is also the operculum.
Fig. 1, plants, nat. size. Fig. 2, leaf. Fig. 3, capsule and
operculum,—magn. f