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HYPNUM ARBUSCULA.
Hypnum caule erecto bipinnatim ramoso, foliis undique
imbricatis ovatis concavis integerrimis basi obsolete
binervibus, seta brevi, capsula erecta ovata. (Tab.
C X I I .)
Hookeria Arbuscula. Smith in Linn. Trans, v. 9.
p. 280. t. 23.
Ha b . In sinu Dusky bay dicto apud Novam Zeelandiam.
D. Menzies, 1791.
Caulis palmaris et ultra, basi repens, tomento fusco-ferrugineo
obsitus, dein erectus flexuosus rigidus, inferne simplex, foliis
parvis tectus, superne pinnatus, ramis iterum divisis, inferio-
ribus longioribus, omnibus horizontaliter patentibus. Folia
tescente-viridia, undique imbricata, erecto-patentia, nitida,
ovata, concava, margine omnino integerrima, basi obsoletissime
binervia. Perichætialia lanceolato-acuminata, enervia,
recurva. Setoe 3-lineares. Capsula erecta, rufo-fusca. Pe-
ristomium ut in Hypno, dentibus flavo-fulvis, arcte transversim
striatis.
Not being so fortunate as to possess the calyptra of this handsome
moss, I dare not venture to follow Sir J. E. Smith in making
it a Hookeria, with which genus it does not to me appear to have
much natural affinity. It has a tree-like mode of growth, very
similar to Neckera dendroides, N . planifoUa, Leskea concinna,
Hypnum neckerioides, &c. differing, however, from all these in
the foliage and fructification. In its leaves and capsules it borders
upon H .fle x ile . (T ab. C X .)
Fig. 1, plant, nat. size. Fig. 2, portion of a branch and fructification.
Fig. 3, leaf. Fig. 4, perichaetial ditto. Fig. 5, teeth
of outer peristome. Fig. 6, portion of inner ditto.—magti.