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Rh HYPNUM MINUTISSIMUM, Sulliv. & Lesqx.

Tab. 120.

minimæ, teneræ, laxe demisso-cæspitulosæ, pallide vel luteolo-virides.

vix semiuncialis, prostratus, fasciculato-radiculosus; ramulis inordinate vel subpinnatim dispositis 1–2-linearibus erectis seu expansis.

remotiuscula, in sicco æque ac in humido patula, mollia, anguste lanceolata et lineari-lanceolata, margine pins minus leniter serrulata, ample oblongo-hexagono-areolata cellnlis uniformibus, ecostata vel costse loco stria brevissima notata: folia perichætii pro plantæ minutie magni elongata, longius acuminata superne grossius dentato-serrata.

monoici, cauligeni, vix paraphysati: masculis sub-stipitatis majusculis gemmiformibus; antheridiis 3–4 ovalibus; perigonialibus acuminato-ovatis apice serrulatis.

minutissima, pro more asymmetrica subovalis vel sub-ovata cernua altero latere convexiore, rarius æqualis erecta, sicca deoperculata sub ore obliquo amplissimo constricta, turbinata, pallide fuscescens, tenui-membranacea; pedicello debili 2–3-lineari; annulo distincto duplici persistente; peristomii dentibus luteolis firmis lanceolato-subulatis crebrius articulatis margine hyalino circumductis intus lamelligeris, ciliis carinatis integris e membrana plicata ad medios fere dentes producta, ciliolis singulis binisve longiusculis.

On moist rocks in shaded ravines, Central and Southern Ohio: rare.