rCONES MUSOORUM. 123 



LESKEA OBSCURA, Hedw. 



Tab. 77. 



Plants tenella), laxius intricato-caespitosas, sordide virides, 

 aetate ochraceae, valde capsuligerae. 



Caulis uncialis, prostratus vel ascendens, subpinnatim et inor- 

 dinate confertim ramosus. 



Folia canlina et ramea omnino conformia, erecto-patentia, 

 laxius incumbentia, ovata, elongato-ovata, e basi ovata brevius 

 oblongo-acuminata, obtusa vel acutiuscula, concava, margine late 

 leniter recurva, opaca, rotundato-areolata, fere ad apicem usque 

 valido-costata : perichastialia superiora elongata, vaginantia, laxi- 

 us texta, costata. 



Flores nionoici : masculi gemmacei ; antberidiis vix para- 

 physatis. 



Capsula erecta, elliptico-oblonga, plerumque regularis, tenui- 

 membranacea, aetate rufo-ochracea ; pedicello 6-10-unciali ; an- 

 nulo persistente parvulo ; peristomii duplicis dentibus lineali- 

 lanceolatis linea divisuriali notatis remotius articulatis, articulis 

 utraque facie prominulis, ciliis tenuibus linealibus, carina lacu- 

 nosis e membrana angustiore ortis, ciliolis nullis ; operculo 

 breviter et obtuse conico ; calyptra cuculliformi. 



Leskea obscura, Hedw. Sp. Muse p. 223, t. 57. 



Leskea gracilescens, Hedw.; Hook. & Wils. in Drumm. Muse. Amer. 



Coll. 2, No. 106. 

 Leskea nervosa, Sulliv. Muse. Alleghan. No. 69. 

 Leskea microcarpa, Schirap. in litt. ; Sulliv. Mosses U. States, p. 59. 

 • Pterogonium nervosum, Hook. & Wils. in Drumm. Muse. Amer. Coll. 2, 

 No. 89, nee Schwjegr. 



Hab. On roots and the lower portion of trunks of trees near 

 water-courses, in low grounds, Middle and Soutbern States. 



