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Rh ENTOSTHODON DRUMMONDII, Sulliv.

Tab. 55.

subannuæ, gregariæ vel caespitulosæ, c flavescenti virides, sola basi radiculis instructæ.

2–4 lineas altus, inferne subnudus, superne congesto-foliosus.

subconniventia, lanceolato-obovata vel ligulato-lanceolata, concava, raargine plus minus luteis cellulis promiuulis subcrenulata; costa sub vel cum apice evanida; reti laxo folii apicem versus elongato-hexagono, inferne ampliore rectangulo hyaline

monoici: flos masculus in caule primario ramum fertilem demum superantem exserente terminalis; antheridiis breviusculis; paraphysibus apice oblongo-inflatis.

brevi-pyriformis, symmetrica, in pedicello siccitate omnino sinistrorsum torto flexuoso-erecto erecta, microstoma, sicca deoperculata oblonga, ore ampliato; peristomii dentibus lineali-lanceolatis rufescentibus longitudinaliter granuloso-striolatis, articulationibus remotis opacis obscuris, linea divisuriali nulla vel obsoletissima; operculo depresso-convexo vix apiculato; calyptra vesiculoso-cuculliformi longe subulato-rostrato; sporis angulato-rotundis brunneo-fuscis papillulosis.

Moist, clayey soil, Louisiana, Drummond. Near Montgomery, Alabama, Sullivant.—Very rare.

The short pyriform capsule and the long subulate rostrum of the calyptra, besides other marks, readily distinguish this species