[CONES MUSCOKIM. 95 



APHANORHEGMA SERRATUM, Suttiv. 



Tab. 57. 



Plants lmmiles, teneroc, annua? vel bi-triennes, gregariae, 

 vel ccespitulos laxos pallide viresccntes formantcs, basi sola radi- 

 culosao. 



Caulis erectus, 3-7 lineas attingens, primo simplex, dein bis 

 terve dichotome innovando-ramosus. 



Folia mollia, inferiore in caule elongato remota, flexuoso- 

 patula ; superiora approximata, erectiuscula, oblongo- et spatbu- 

 lato-lanceolata, brevius acuminata, supra medium serrata, ad 

 apicem usque tenui-costata, laxe bexagono-areolata ; cellulis basi- 

 iaribus majoribus oblongis rectangulis, marginalibus saspe luteo 

 tinctis. 



Flores monoici et synoici : antberidiis 6-12 fasciculatis nudis 

 vel uno alterove folio perigoniali minimo comitatis in comalium 

 axillis rarius ad vaginulas basin positis ; parapbysibus longioribus 

 apice maxime globoso-inflatis. 



Capsula immersa, brevissime pedicellata, spbaerica, vertice 

 minute papillata, in medio rima baud discolore valcle obscura 

 circumcisse debiscens ; calyptra conico-mitrasformi 5-6-lobata 

 vix ad operculi medium porrecta ; sporis tuberculatis. 



Aphanorhegma serratum, Sulliv. in Mem. Amer. Acad. n. ser. 4, p. 60, 

 t. 2; Mosses U. States, p. 52, t. 4; Sulliv. & Lesqx. Muse. Bor.-Amer. 

 Exsicc. (ed. 1), No. 154. 



Schistidium serratum, Hook. & Wils. in Drumm. Muse. Amer. Coll. 2, No. 

 20 ; Sulliv. Muse. Alleghan. No. 198. 



Physcomitrium serratum, C. Miill. Synop. Muse. 2, p. 545. 



Hab. Damp ground, river-banks, sliaded roadsides, &c., New 

 Jersey, Pennsylvania, and Western Missouri. — Not un- 

 common. 



