BARTRAMIA RADICALIS, Beauv.
Tab. 52.
Plantæ molles, laxiuscule pulvinantes, glauco- vel luteo-virides, inferne fuscescentes et toto fere longitudine tomento ferru gineo intertextæ.
Caulis breviusculus, e basi decumbente ascendens, sub apice fertili verticillato-ramulosus.
Folia erecto-patentia et subsecunda, lineali-lanceolata, longius cuspidata, argute serrata, solum superiore pagina papillosa; costa sub vel ultra apicem producta: perichæti alia late ovata, subito setacea.
Flores monoici: masculi gemmacei, femineis approximati; perigonialibus e basi valde coucava longe subulata; antheridiis elongatis; paraphysibus longioribus subclavasformibus.
Capsula in pedicello longo tenui flexuoso subhorizontalis, globosa; operculo minuto convexo-apiculato; peristomii dentibus lineali-lanceolatis in subulam productis rufo-auranteis, processibus luteis longitrorsum moniliformi-striolatis hic illic pertusis, ciliolis binis brevibus interjectis; sporis papillosis.
Bartramia radicalis, Beauv. Prodr. p. 44; Schwægr. Suppl. t. 61; C. Müll. Synop. 1, p. 485; Sulliv. Mosses U. States, p. 50; Sulliv. & Lesqx. Musc. Bor.-Amer. Exsicc. (ed. 1), No. 169.
Bartramia longiseta, Michx. Fl. Bor.-Amer. 2, p. 301.
Hab. On the ground in wet, springy places, margins of swamps, &c, Southern States.—Not uncommon.
B. radicalis is very near the European B. rigida, whose place in this country it seems to supply. The latter species, however, has a less linear leaf, papillose on the lower surface only and refiexed on the margins, a thicker and shorter pedicel, and an oblong-globose capsule with a thicker exterior membrane.
