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Rh BRYUM LESCURIANUM, Sulliv.

Tab. 50.

pusillæ, gregarise vel interrupte cæspitulosae, viridi-lutescentes, nullo rubore tinctæ.

6–10 lineas longus, simplex, declinatus, basi parce radiculosus.

inferiora remota, parvula, anguste lanceolata; superiora majora in comam polyphyllam conferta, erecto-patentia, elongato lanceolata; perichsetialia longe linealia, acutata; omnia summo apice leviter serrata, laxius areolata, costa valida ad apicem fere attingente instructa.

dioici: plantæ masculæ minores, floribus terminalibus; perigonialibus exterioribus e basi concava erecta snbulatis patentibus, interioribus multo brevioribns ovatis acutis; antheridiis numerosis paraphysatis.

in pedicello e basi subgeniculata flexuoso-erecto pendula, pyriformis, sicca opercnlo detruso valde macrostoma; annulo duplici revolubili; peristomii duplicis dentibns lineali-lanceolatis subnlatis pallide luteis remotius articulatis, processibus in linea carinali fissis, ciliolis singulis interjectis; operculo hemisphærico-apiculato.

Clay banks, Cincinnati, Ohio, Lea. Lancaster, Ohio, and near the Dismal Swamp, Virginia, Lesquereux. Pennsylvania and New Hampshire, James.

Besides other marks of less importance, such as the plane margins of the leaf, and the absence of redness in any part of