TETRAPLODON AUSTRALIS, Sulliv. & Lesqx.
Tab. 58.
Plantæ teneræ, graciles, tomento radiculoso intertextæ, in cæspitulis compactis superne læte viridibus inferne fuscescentibus congestæ.
Caulis uncialis, brevior vel longior, simplex vel parce fastigiato-ramosus.
Folia mollia, dissita, erectiuscula, elongato-lanceolata, longe tenui-acuminata, remote grosse serrato-dentata, interdum fere pinnatifida, rarius subintegra; costa cum apice desinente; reti laxissimo oblongo-hexagono.
Flores dioici et monoici: flos masculus discoideo-capituliformis, conspicuus, in planta distincta graciliore terminalis, vel gemmseformis in plantae fertilis foliorum axillis ; floris terminalis perigonialibus 4–6, e basi late ovata erecta repente lineali-attenuatis subliorizontalibus; antheridiis et paraphysibus sub-clavæformibus, numerosissimis.
Capsula oblongo-ovalis, parvula, apophysi sporangio paululum latiore et longiore in pedicellum 3–5-linearem crassum sensim defluente instructa, laxius areolata, cellulis orificii marginalibus subquadrato-rotundis nee (ut in T. angustato) transversim oblongis; peristoma dentibus binatim conjunctis haud demisse insertis; calyptra elongato-conica, basi baud fissa, operculum hemisphærico-conicum obtuse apiculatum vix tegente.
Tetraplodon australis, Sulliv. & Lesqx. Musc. Bor.-Amer. Exsicc. (ed. 1), No. 151 ; Sulliv. Mosses U. States, p. 53, t. 4.
Splachnum setaceum, Hook. & Wife, in Drumm. Muse. Amer. Coll. 2, No. 27, nee Michx., cujus planta ad Tetrap. angustatum referenda est.
Sphagnum foliis tenuibus, etc., Dill. Hist. Musc. t. 85, f. 15, p. 550.
Hab. Swamps near the sea-coast, Florida to New Jersey.
