ICONES MUSCORUM. 39 



FISSIDENS RAVENELII, Sulliv. 

 Tab. 25. 



Plants pusillas, gregarie degcntes, saturate viridcs, basi sola 

 radiculosae. 



Caulis simplex, 1-2 lineas longus, semilineam latus, erectus 

 vel ascendens. 



Folia 7-15-juga (in caule sterili 18-20), explanata lineari- 

 oblonga, acuta, conferta, opaca ; duplicatura ad medium produc- 

 ta, ilia floralium limbo latissimo grossius dentato instructa ; 

 lamina apicali, ut et dorsalis, baud limbata minute denticulata ; 

 reti densissimo e cellulis minutis subrotundis chlorophyllosis 

 prominulis exstructo ; costa flexuosa hyalina sub vel cum apice 

 evanida. 



Flores dioici, terminales : plantae masculse minutissimae, 4-6- 

 phyllse ; foliis perigonialibus ventricosis margine eroso-dentatis 

 lamina apicali (dorsali obsoleta) instructis. 



Capsula oblonga, erecta, aequalis, leptoderma, leniter papillu- 

 losa ; operculo conico longius oblique rostellato ; calyptra conica 

 uno latere fissa. 



Fxssidens Ravenelii, Sulliv. in Mem. Amer. Acad. n. ser. 4, p. 171, t. 2; 

 Mosses U. States, p. 24; Sulliv. & Lesqx. Muse. Bor.-Amer. Exsicc. (ed. 

 1), No. 81. 



Hab. Damp bricks and earth, Santee Canal, South Carolina, 

 Ravenel. Moist ground, Society Hill, North Carolina, 

 Curtis. 



This species is known by its opaque and densely areolated 

 leaves, with their lamime minutely denticulate and immarginate, 

 except those of the duplicaturc of the floral leaves, which have 



