ICONES MUSCORUM. 71 



COSCINODON WRIGHTII, Suttiv. 



Tab. 45. 



Plants pusilla), compacte pulvinulatoe, terra obruta), c sor- 

 didc viridi incana). 



Caulis 3-4 lineas altus, simplex vel fastigiato-ramo-sus, basi 

 sola radiculosus. 



Folia arete imbricantia ; inferiora ovalia ; superiora majora 

 obovata, coclileariformi-concava ; omnia apice eroso-dentata, costa 

 valida in pilum incanum serratum lamina duplo longiorem 

 exeunte instructa, basi laxe pellueide oblongo-areolata ; cellu- 

 lis mediis et apicalibus minoribus oblongo-ovalibus, illis valde 

 chlorophyllosis, his hyalinis. 



Flores monoici : masculi in ramis terminales ; perigonialibus 

 ovatis vix costatis ; antheridiis elongatis parce paraphysatis. 



Capsula immersa, in pedicello brevissimo curvulo erecta, 

 ovali-oblonga, basi truncata, tenui-membranacea, sicca lasvis ; 

 annulo lato fragmentarie secedente ; peristomii dentibus sedecem 

 lanceolatis purpureis apice irregulariter 2 — 3-fissis, inferne cri- 

 brosis ; operculo e basi depresso-conica rostellato ; calyptra mi- 

 traaformi multoties plicata infra capsular medium descendente ; 

 vaginula apice breviter fimbriata. 



Coscinodon Wrightii, Sulliv. Mosses U. States, p. 38, t. 4 ; Sulliv. & 

 Lesqx. Muse. Bor.-Amer. Exsicc. (ed. 1), No. 132. 



Hab. On rocks near San Marcos, Texas, Wright. Santa Fe, 

 New Mexico, Fendler. 



The only known congener of this species is the European 

 C. pulvinalus, in which the capsule is obovate and emergent, 

 with a very large operculum and a simple and narrow annulus : 



