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26 BRUCHIA RAVENELII, Wils.

Tab. 16.

generis minimæ, sparsæ vel in cæspitulos aggregate.

brevissimus, simplex, condensato-foliosus.

infima minutissima, media lineari-lanceolata erecta, summa multo majora patentia, capsulam longe superantia, e lanceolato sensim angustata, apice grossius dentata; reti inferiore laxo oblongo, superiore denso quadrato; costa lata percurrente.

monoici: masculi in ramulis basilaribns terminales; perigonialibus elongato-lanceolatis.

vix emersa, una cum collo lato brevi obovata vel ovali-pyriformis, in pedicelluni perbrevem abrupte continua, brevissime apiculata; calyptra niitraeformi pluriloba papillis copiose conspersa; sporis luteolis papillulosis circa diametro $1⁄30$ unc. metientibus.

Banks of the Santee Canal, South Carolina, Ravenel.

The papillose calyptra is the leading character of this species.

TAB. 16.—