PARTS OF FRUCTIFICATION IN MOSSES. 349 



masculis, et calyptrd jpenitils convenit ; inde aliqico modo 

 BuxbaumiEe accedens, prasertim fic/urd capsulce, et structurd 

 columellee. Peristomio autem ah omnibus diver sissimus. 



DaWSONIA POliYTRICHOIDES. 



Tab. 11 [XXIII].! -p-^^ ^ 



Patria. Novae liollandise era orientalis, extra tropicum. 



Statio. Ripse subumbrosse vivulorum, ad radices mon- 

 tiuna, in vicinitate Portus Jaclison. 



Desc. CcBspites laxi, amorphi. Badiculcs tenuissimaej 

 tomenti instar, caudicem descendentem brevem inves- pit 

 tientes. CauUs simplicissimus, erectus, sirictus, 3 — 3- 

 uncialis, basi reliquiis foliorura squamatus, supra dense 

 foliatus. Folia, e basi dilatata semiamplexicauli membra- 

 nacea fusca, lineari-subulata, opaca, viridia, marginibus 

 longitudinaliter dorsoque apicis denticulatis, spinulis sursum 

 crebrioribus majoribusque, concaviuscula, patula, siccatione 

 appressa, canaliculata, superiora vix semuncialia, inferiora 

 sensim breviora. 



Masculi Mores tenninales, discoidei. Folia perigonialia 

 cuneato-orbiculata, mucronata, integerrima, semimembra- 

 nacea, exteriora sensim majora. Fila succulenta numerosa, 

 articulata, basi attenuata. Antherce flosculi singuli 6-8, 

 cylindracese, brevissime pedicellatse. 



Femineus Flos in distincto individuo. Seta terminalis, 

 solitaria, erecta, Isevis, nitens, rufo-fusca, caule ter brevior, 

 foliis terminalibus duplo longior. Vaginula cylindracea, 

 stricta, glabra, tegmine pilorum calyptrse exterioris instar 

 instructa. 



Calyptra duplex : exterior constans pilis intertextis dimi- 

 dio inferiore tenui flexuoso paUido ramuloso edentulo, 

 superiora ferrugineo stricto denticulate : interior mem- 

 branacea straminea, capsulse maturse subulata, supra longi- 

 tudinaliter fissa, apice solum denticulata. 



Capsula nutans, angulum fere rectum cum seta efformans, 



> The figures within brackets refer to tlie numbering of this and subsequent 

 plates in the ' Linnean Transactions.'— Ed. 



