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Rh DESMATODON PLINTHOBIUS, Sulliv. & Lesqx.

Tab. 30. humiles, in cæspitibus pulvinatis e glauco-viridi canesccntibus confertæ.

simplex vel innovatione divisus, subsemiuncialis, radiculis usque ad apicem instructus.

sicca tortilia, liumida erecto-patentia; inferiora ovato-oblonga, brevipila; terminalia ligulato-oblonga, obtusa, carinato-concava, toto ambitu anguste arete revoluta ut marginata videantur, inferne laxius pellucide oblongo- superne minute quadrato-areolata, valde chlorophyllosa, papillosa; costa valida lutescente in pilum (folii fere longitudine) incanum læve flexuosum producta.

dioici: masculi gemmacei, terminales ; antheridiis 8–10 copiose paraphysatis.

cylindraceo-oblonga, erecta, recta vel curvula, cucullato-calyptrata, in pedicello 5–10-lineari elata, speciose annulata; operculo e basi conica crasse obtuse rostrato; peristomio brevi, dentibus sedecem fragilibus baud tortis albidis granulosis remote articulatis ad medium fissis.

Brick pavements, Charleston, South Carolina, Ravenel.Nashville, Tennessee, Lesquereux. Limestone Rocks, Pennsylvania, Porter. Texas, Lindheimer. Very like Desmatodon latifolius, ''Bryol. Europ.''; but that species has a leaf with a shorter hair-point, a shorter and wider capsule, an operculum with a short and obtuse rostrum, a longer calyptra descending to the base of the capsule, a simple