HYPNUM ADNATUM, Hedw.
Tab. 121.
Plantæ pusillæ; in cæspitibus demissis densis saturate viridibus degentes.
Caulis arcte reptans, subuncialis, divisus; divisionibus plus minus distiche ramulosis; ramulis brevibus 1–3 lineas longis subterete foliosis prostratis vel erectis.
Folia confertiora, erectiuscula, late lanceolata vel elliptico-lanceolata, sensim obtuse acuminata, profundius concava, integerrima, margine inferiore anguste recurva, ecostata vel striis gemellis costaeformibus brevibus praedita, amoene pellucide sub-rliombeo-areolata; cellulis angularibus minoribus quadratis sub-opacis: perichætialia externa subobovata, apiculata, patentia; interiora majora, erecta, elliptico-oblonga, subito tenuiter acuminata, ad acuminis basin grosse irregulariter dentata, distinctius semicostata.
Flores monoici in caule vel ejusdem divisionibus, paraphysati.
Capsula oblonga, erecto-cernua, insequalis, in pedicellum 5–7-linearem inferne rubellum superne flavescentem sensim angustata, leptoderma, matura olivacea, dein badia; annulo subpersistente; peristomii dentibus lineali-lanceolatis luteolis, ciliis imperforatis, ciliolis singulis binisve; operculo pallido convexo-conico longius breviusve operculato.
Hypnum Addnatum, Hedw. Sp. Musc. p. 248, t. 64; Brid. Bryol. Univ. 2, p. 591 ; C. Mull. Synop. Musc. 2, p. 339 ; Sulliv. Mosses U. States, p. 78; Sulliv. & Lesqx. Muse. Bor.-Amer. Exsiec. (ed. 1), No. 344.
Hab. Shady woods, on stones near the surface of the ground; also on trees: common.
