ICON KS MUSCORUM. L69 



HYPNUM SERRULATUM, Hedw. 

 Tab. 107. 



Plants lscte vel pallide virides, nitidae, stratum tenue laxum 

 diffusum efficicntes. 



Caulis arete repens, elongatus, bis terve divisus, distanter dis- 

 tiche ramulosus ; divisionibus rauiulisque prostratis laxissime bi- 

 fariam foliosis. 



Folia tenuia, complanata, patentissima, ovato-lanceolata, an- 

 guste acuminata, superne serrulata, laxius elongato-rhomboideo- 

 areolata, ad medium costa debili instructa : pericha3tialia oblonga, 

 scariosa, albescentia, laxe amplexantia, subito filiformi-attenuata, 

 apice varie fiexa, ecostata {nee costata ut icon nostra false effin- 

 git). 



Flores monoici, copiose et exserte paraphysati ; masculis gem- 

 miformibus. 



Capsula oblonga, cernuo-incurva ; pedicello erecto-flexuoso 

 laevi ; peristomii dentibus lineali-lanceolatis firmis dense articu- 

 latis hyalino-marginatis, ciliis integris dentibus sequilongis, ciliolis 

 2-3 brevioribus nodoso-articulatis ; annulo specioso facile dis- 

 cedente ; operculo e basi conica longe rostrato. 



IIypnum serrulatum, Hedw. Sp. Muse. t. 60, p. 238; JBrid. Bryol. Univ. 

 2, p. 390; Sulliv. Mosses U. States, p. 70. 



Hab. On the ground in dry woods, forming loose thin strata, 

 usually over decayed leaves. 



H. serrulatum is very closely allied to H. con/ertum, Dicks., 

 and it is questionable if essential characters separating theni 

 exist. 



