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ORTHOTRICHUM GRACILE.
Orthotrichum caule erecto elongato ramoso, foliis lan-
ceolato-subnlatis flexuosis, siccitate tortis, seta bre-
viuscula, capsula ovata glabra, calyptra glabra multi-
fida, ciliis nullis, dentibus 16 vix per paria approximatis.
(Tab. XXVII.)
H a b . In siiui Dusky Bay dicto, in Nova Zeelandia. jD, Men-
xies, 1 7 9 1 .
Caules 3-4-unciales, graciles, fle.xuosi, ramosi, ramis sparsis plerumque
simpiicibus. Folia luteo-fusca, laxe patentia, lanceolato
subulata, flexuosa, carinata, nervo ad apicem attingente
instructa. Perichcetialia planiuscula, substriata. Selce terminales,
demum, ob caulis innovationes, laterales,, bi- tri-line-
ares, flexuosæ. Capsula ovata, fusca, lævis. Operculum subulatum,
capsula .subæque longa. Calyptra intense fusca, glabra,
striata, multifida, segmentis lougis linearibus. Peristomium
simplex, dentibus 16 vi.x per paria approximatis, pallide
flavis, linea media longitudinali notatis, transversim striatis,
ila
Orlhoirichum gracile has at first sight, not only in its leaves
but even in the fruitstalk and capsule, the aspect oi Trichostomum
patens-, the calyptra, however, and the teeth prove it to be of
the same family with our 0 . longirosirum and longipes. From
those it differs iu its long stem, proliferous branches, which give
the fruit so often the appearance of being lateral, and especially
i
Fig. 1, plants nat. size. Fig. 2, leaf. Fig. 3, point of ditto.
Fig. 4, perichastial leaf. Fig. 5, fruitstalk and capsule. Fig. 6,
teeth of peristome. Fig. 7, operculum.—magn. i’ili