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Rh HYPNUM NUTTALLH, Wils.

Tab. 128.

colore aureo-nitentc insignes, cæspites late extensos depressos formantes.

prostratus, breviter fasciculato-radiculosus, 3–5 uncias longus, parcius divisus, pinnato-ramulosus; ramnlis confertissimis brevibus 3–5-linearibus nunc expansis nunc homomallis curvulis ascendentibus.

dense imbricantia, erecto-patentia, stricta, anguste oblongo-lanceolata, longe sensimque acuminata, plus minus sulcatostriata, serrata, ad marginem basilarem recurvum grossius dentata; costa alte in acumen producta; reti firino e cellulis longissimis angustis, illis ad basis angulos latioribus subquadratis hyalinis: perichætialia interiora erecta, elongato-oblonga, filiformi-attenuata, striata, obsolete costata, laxius texta.

pseudo-monoici (normaliter dioici ex eel. Wilson): masculi plantulæ gemmiformes, basi radiculigeræ, e sporis enatæ in plantis femineis parasiticæ, sæpius 2–4 aggregatæ; antheridiis minimis; parapbysibus nullis vel rudimentariis.

elongato-cjlindracea, erectiuscula, curvula, sicca arcuata, collo parvulo distincto; pedicello valde exasperato perbrevi capsulam paulum superante vel aequante vel ea breviore; annulo angusto; peristomii dentibus lanceolato-subulatis dense articulatis byalino-marginatis, ciliis in carina diremptis, ciliolis subnullis; operculo tumido-conico brevirostro; calyptra angusta dimidiata.

On trees, Western Coast of Nortb America, Menzies, Gairdner, Nultall, Bigelow, Bauer, Bolander.