HYPNUM ORTHOCLADON, Beauv.
Tab. 122.
Plantæ proccriores, in cæspitibus laxis extcnsis tumesccntibus profundis e saturate viridi flavescentibus degentes.
Caulis prostratus, 2–3-uncialis, divisus, valde radiculosus, ramos simplices vel subpinnatim ramulosos numerosos erectos unciales et longiores proferens.
Folia caulis ejusque divisionum e basi cordata late ovata, longius acute acuminata; ramorum et ramulorum angustiora; omnia laxiuscula, erecto-patentia, modice concava, integerrima vel obscure serrulata; costa crassa ad summum fere apicem pertingente; textura (in vivis) carnosiuscula e cellulis cblorophyllosis satis minutis subrhomboideis formata: perichaetialia erecta; interiora membranacea, lineari-areolata, substriata, oblongo-lanceolata, apice obtusiuscula distincte dentata, debinc costa latissima excedente breviter cuspidata.
Flores dioici in caule primario, paraphysati; perigonialibus ecostatis apice attenuatis.
Capsula majuscula, in pedicello longo flexuoso rubro oblongo-cylindracea, leviter incurvo-cernua, sicca arcuata sub ore contracta, e luteo fuscescens, longicolla; annulo simplici angusto; peristomii dentibus lanceolato-subulatis basi coalitis auranteis, ciliis æquilongis in carina vix rimulosis eque membrana pallidiore plicata medios dentes æquante ortis, ciliolis longis binatis ternatisve nodoso-articulatis; operculo amplo tumido-conico minute apiculato.
Hypnum orthocladon, Beauv. Prod. p. 72; Brid. Bryol. Univ. 2, p. 537: Hook. & Wils. in Drumm. Musc. Amer. Coll. 2, No. 138, 139; Sulliv. Mosses U. States, p. 78 ; Sulliv. & Lesqx. Musc. Bor.-Amer. Exsicc. (ed. 1), No. 347.
Hypnum varium, Hook. & Wils. in Drumm. Musc. Amer. Coll. 2, No. 142.
Hypnum serpens, var varium C. Mull. Synop. Musc. 2, p. 412.
